To keep the calculations fairly simple, but still reasonable, we shall model a human leg that is

92.0cm

long (measured from the hip joint) by assuming that the upper leg and the lower leg (which includes the foot) have equal lengths and that each of them is uniform. For a

70.0kg

person. the mass of the upper leg would be

8.60kg

, while that of the lower leg (including the foot) would be

5.30kg

. Take that

x

-axis is direcied horizontally and the

y

-axis is directed vertically downward.

To keep the calculations fairly simple, but still reasonable, we shall model a human leg that is 92.0cm long (measured from the hip joint) by assuming that the upper leg and the lower leg (which includes the foot) have equal lengths and that each of them is uniform. For a 70.0kg person the mass of the upper leg would be 8.60kg, while that of the lower leg (including the foot) would be 5.30kg. Take that x-axis is direcied horizontally yc= and the y-axis is directed vertically downward