Calculating the bicep muscle force

 

1: Calculate the bicep muscle force (25 points).
Fp = 294.3 N
Weight of drill = 5 kg
∆x = 2 cm
Weight of forearm & hand = 17.3 N
Center of gravity of forearm is 15 cm from the elbow joint along the forearm segment
Moment arm for drill = 42 cm
Moment arm for bicep muscle = 6 cm
Weight of drill bit = 4.91 N
Moment arm for drill bit = 59 cm

Homework 2: Calculate the 75th percentile shoulder-to-fingertip length. Given that the mean length of the lower arm (LA) link length (with the hand) is 452.9 mm, with a standard deviation of 03.4 mm. the mean upper arm (UA) link length is 395.8 mm, and its standard deviation is 7.4 mm. the correlation between UA and LA to be 0.45. (20 points)

Homework 3: Calculate the total metabolism for a male weighing 70 kg who performs the following regimen over 8-hour period: (10 points)
Light assembly: 2hr (Activity metabolism = 2.2 kcal/min)
Bench soldering: 1 hr (Activity metabolism = 2.7 kcal/min)
Laboratory work: 1.5 hr (Activity metabolism = 1.6 kcal/min)
Mowing: 2 hr (Activity metabolism = 6.7 kcal/min)
Weeding: 1.5hr (Activity metabolism = 5.6 kcal/min)
BM = 1.2 kcal/min

Homework 4: Calculate the approximate oxygen consumption and energy consumption and energy expenditure (kcal/min) for the following tasks:
1. Chopping wood for 20 minutes –steady state heart rate = 115 (5 points)
2. Carrying weight upstairs for 10 minutes – steady state heart rate = 135. (5 points)

Based on the energy expenditure determined in Task 1, calculate the rest period if a female 40 years of age (BM = 1.0 Kcal/min) is performing the wood chopping task for 100 minutes. What will be the rest period for the male of same age (BM = 1.0 Kcal/min)? (20 points)

Perform the ergonomic job evaluation for the following lifting tasks. Your ergonomic job evaluation report must include following components:
1) Job description
2) Job analysis
3) Hazard Assessment
4) Redesign suggestion

Homework 5: Super-Mario is working at a supply chain. Products after a certain process are delivered to shelf 1 in a box weighing 22 lbs. After a quick inspection while the product is on shelf 1, he lifts the box and puts it on shelf 2. The frequency of lifting is 3/min for duration of 45 minutes. Frontal length and height of the boxes are less than 16 and 12 inches, respectively. No hand-hold cut-out on the boxes, however boxes can be lifted with by clamping fingers at 90⁰ under the boxes. (30 points)

 

Homework 6. Super Mario is lifting a weight of 500 N such that the horizontal distance between L5S1 joint and the location of the weight is 32 cm. Trunk is making an angle of 20 degrees with the horizontal plane and the moment arm for the body weight with respect to L5S1 joint is 25 cm. Calculate the compressive and shear forces acting at the L5S1 joint. Body weight = 400 N and moment arm for low back muscle = 4.5 cm. (25 points)

Homework 7. Super-Mario unloads cans from a cart to three storage shelves as shown in the following Figure. The cans do not have molded handholds, so the he hooks his fingers or slides his hand under the turned edge of the can to lift it. Lifting frequency is 9 lifts/minutes and duration is 1 hour. (30 points)

 

Homework 8. Following boxes arrive at a stocking station on a conveyor at the rate of 12/min. The conveyor height is 24 inches and the stacking height is 45 inches above the ground. Determine the capacity of 80% of the male population in carrying out this task for 6 hours/day, for 5 days a week. Is this job acceptable? (30 points)

Size Handles Weight Twisting motion
Box 1 20 in. No 10 kg Yes
Box 2 15 in. No 20 kg No
Box 3 12 in. Yes 25 kg No

Consider: 1) equal arrival rate for the three types of boxes; 2) handling of one type of box as a separate task; 3) three tasks constitute one group.

 

Sample Solution

 

Conceptual

This report is about my childcare business called Mary B’s childcare center which joins key segments of childcare. The Mary B’s Daycare is a full-organization child care that contemplates babies from age two to four. Through focused getting ready of the consideration staff and pushed learning systems, The Mary B’s childcare center is advantage similar to kid improvement. This program got together with a uniquely made concentration and a high teacher and understudy extent ensures an unbelievable organization for the children and the watchmen. This report likewise investigates the advantages of Mary B’s consideration and why you ought to put resources into the Mary B’s childcare and why its so imperative to have kid care.

Mary B’s childcare,

For what reason would it be advisable for you to put resources into childcare?

In the present society the greater part of families have a social quirk where the two watchmen need to work. Day-care is where youngsters going from as meager as one month, to some other age, are dealt with during the day. It is practically inconceivable for most families in America to suffer monetarily without two employments. Working guardians need secured, strong and sensible child care. For low-pay gatekeepers moving from welfare into the workforce, that can be tricky. Many depend upon friends and family to watch their adolescents while they work. Despite the fact that this may be an average decision for a couple of guardians, others probably won’t have such help. In addition, kids in home thought may not get educational and social open entryways that state-oversaw kids care centers offer. Mary Bs childcare offer the best childcare in Jackson MS, we have more than 20 extraordinary train guardians, drivers and sitters for late night persuade we likewise furnishes them with the best instruction, nutation and exercises for the children.

Mary B’s Day-care in this way gives elective consideration to little kids, when their folks are away. When turning into a parent, it is elusive sitters for your kids while getting down to business or only a little break from the kids for two or three hours. This places guardians in a condition where they need extra help to watch their youngsters while they are away at work. This is broadly condemned by numerous individuals who accept that youngsters ought not be left under the consideration of outsiders. Taking youngsters to day-care is unsatisfactory by a decent number of individuals. While the inability to do everything is as often as possible undesirable for certain guardians, they can rest ensured childcare is a sensible decision. Mary B’s Daycare offers reliable social, financial and academic preferences for youngsters and infants from the ages of a half year to 4 years, advantage from the childcare condition, including its quality direction, structure and social activities.

There are numerous not-for-profit and benefit affiliations that band together with Mary B’s childcare crosswise over Mississippi it can expect a fundamental activity in passing on consideration to youngsters in low-and moderate-pay locales. In any case, various not for benefits that work child care workplaces miss the mark on the aptitude or pay to make and finance a capital endeavor and should look outside of their relationship for assistance. That help can come as open private associations with credit masters. Making childcares like Mary Bs childcare courses of action is currently one of the essential monetary and calculated worries for working guardians, with significant vocation suggestions, particularly for ladies.

Advantages structure Mary B’s childcare

There are numerous ways you can profit by Mary B’s childcare one of the ways is plan Indeed, even children have a timetable at childcare. In spite of the fact that they likely won’t think about the ticking clock, kids are given a full record of activities that fuse songs and describing. For little youngsters, these fun endeavors are major to their insightful improvement and progression. The arranged activities are in like manner satisfying for guardians and gatekeepers, who have less pressure that their little youngster’s lead will be conflicting constantly end on account of a nonattendance of sorted out events for eating, playing and resting.

Another way is scholastic progression, this gets ready youngsters for school so they can have a superior understanding this can likewise lift up their cooperation with other kids. It’s an open entryway for them to make sense of how to share, hold fast to bearings, associate with different children, and soak up the devices they’ll need to win later. A broad examination by the U.S. National Institutes of Health found that little youngsters had higher psychological and scholarly accomplishment scores as adolescents on the off chance that they invested energy in top notch childcare as small kids. (west) Of the in excess of 1,300 youngsters considered, more than 90 percent had been being taken care of by somebody other than a parent before the age of 4. (west)

Then again, childcares can mitigate weight on the guardians, when your kid has sheltered, cherishing, and animating youngster care that you can rely on, you don’t need to stress while you are grinding away. You realize that your youngster is getting the sort of consideration kids should be solid, glad, and fruitful. While kids can profit by Mary B’s childcare Society, adolescents, families, organizations, systems, and the nation all things considered benefit by magnificent kid care. Empowering a strong, productive, future workforce is crucial to everyone’s flourishing. Guardians and gatekeepers can ensure Mary B’s childcare will protect their children are in magnificent childcare for parental figures who are loving and responsive to children’s needs, give a fortifying circumstance, and attract with youths by talking and playing with them as regularly as would be prudent.

Information

Bearing childcare can be a test for guardians, especially those with low wages. A 2014 Pew Research Center report found that families gaining under $18,000 yearly spend about 40% of their pay on childcare (contrasted with 7.2% of pay for all families). (Feldman) Mary B’s childcare is truly reasonable we work with guardians and watchmen for a month to month plan that they can manage. As indicated by the Bureau of Labor Statistics, 28% of moms with little youngsters worked in 1975, dramatically increasing to 60% by 2013. (Feldman) Over a similar period, the quantity of childcare industry workers expanded by about 250%. The BLS takes note of that interest in childcare by non-benefit and government organizations, just as new duty credits, additionally energized the business’ development. (Feldman).

End

In end Mary B’s childcare fits the prerequisites for kids and guardians with low pay get the correct kid care for their youngsters. Children will as a rule adjust quicker when they value it, or in the event that they have their friends nearby them. Subsequently, posterity of a comparative age pack are clubbed together and taught by their age. Thusly, they get the chance to interface with various kids, similarly as explore and find a few solutions concerning what they can do. Children’s dietary examples are upgraded by giving them incredible, nutritious sustenance. It helps in keeping the body and cerebrum, fit and new all as the day advanced. This is major in keeping up a strong lifestyle, you see multi day care center has a crucial activity in making or harming a child’s future. Appropriately, Mary B’s childcare suits your necessities and essentials, yet furthermore your kid’s.

References

Feldman, J. (2016, December 08). Childcare and early youth instruction in the United States: Research roundup. Recovered from https://journalistsresource.org/contemplates/society/training/early-youth care-educationunited-states-inquire about gathering/

Morisseau-Kuni, J. B. (2016, July 13). Putting resources into the Future: Child Care Plays Important Role in Community Development. Recovered February 10, 2019, from https://www.stlouisfed.org/distributions/spans/winter-20062007/putting resources into the-future youngster care-assumes significant job in-network improvement

West, L. (2016, August 25). 6 Benefits of Daycare for Young Children – The ChildCareAdvantage.com Blog. Recovered February 10, 2019, from https://childcareadvantage.com/benefits-of-childcare for-little youngsters

 

 

 

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