Hello, this is kind of problem mixture of biology and physics. but all goes to s
ID: 1446624 • Letter: H
Question
Hello, this is kind of problem mixture of biology and physics. but all goes to solving problems with numbers.
lly Meorrect answers, it would be a good idea lek of the paper if you have to Atmospheric pressure = 101 kPa (1) (25 pts) The distance from your instructor's elbow to the middle of his hand is 36cm. He has a 25 kg weight in his hand, and his arm and hand together weigh 1.5 kg. His bicep muscle attaches 4cm from his elbow (a) Assuming that the bicep muscle does not exert a different force at different lengths, does the angle that the elbow takes affect the minimum force required to lift the weight. Demonstrate your answer (b) What is the minimum force does his bicep muscle have to exert to lift this weight? Be sure to draw a force diagram (c) Manute Bol's forearm + half-hand distance is 76 cm. His arm and hand together weigh 2.1 kg Assuming that his bicep attachment point is still 4cm from the elbow, what force does his musecle have to exert to lift the same weight? How much does this change if his attachment point is 6 em from his elbow? kg. His bicep muscle attaches 4cm from hits the same weight? How much does this change if his attachment point is 6 em from his elbowExplanation / Answer
a) Yes, the angle that the elbow takes affect minimum force required to lift the weight . The more angle the elbow make , it will be more difficult to lift weight i.e more force have to be applied .
b) Minimum force required = (25 * 36 + 1.5 * 18)/4
= 231.75 kg
=> Minimum force required = 2271.15 N
c) Minimum force required = (25 * 76 + 2.1 * 38)/4
= 494.95 kg
=> Minimum force required = 4850.51 N
=> changed minimum force = (25 * 76 + 2.1 * 38)/6
= 330 kg
=> Minimum force required = 3234 N
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