Torque is the ability for something to turn on a certain axis. Torque is equal to lever arm times force. There is a center of gravity of every object and also an axis of rotation. The two are not the same but the torque of each object depends on both. The reason that this diver can flip so many times is because their center of gravity is in their waste and by pulling in both their arms and legs they make their axis of rotation where their center of gravity is as well. Their arms are legs are the level arms and because they are small the force is big therefore making the torque big.
I see how the diver reduced her rotational inertia by bringing her arms and legs closer to the axis of rotation. This made it easier for her to complete more rotations.
I see how the diver reduced her rotational inertia by bringing her arms and legs closer to the axis of rotation. This made it easier for her to complete more rotations.
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