Question

whether pitching a softball or throwing a bowling ball is more stressful to the human shoulder. find the force exerted the muscle in each scenario to come up with an answer.

assumptions:

for bowling ball:

the weight of the bowling ball is 7.27kg

radius of arm =.6

weight of arm is 4 kg

this is an underhanded throw

For softball:

the arm rotates 360 degress (windmill motion)

it is an overhand pitch

weight of a softball is .198kg

weight of arm=4 kg

Answer 1