The rotational inertia of your leg is greater when your leg is

straight

Explanation:

When a person runs bends the legs to reduce rotational inertia, in addition the short legs have less rotation inertia than the long ones. An animal with short legs has a faster pace than one with long legs. Therefore the rotational inertia is greater when the leg is straight and the longer it is.

0.3x0.21x0.08kg=mass 1 sheet

mass 500 = 500xmass 1

volume pile = 0.3x0.2x0.048

density=mass/volume= 500xmass 1/0.3x0.2x0.048

v patient student

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.