Mammals that depend on being able to run fast have slender lower legs with flesh and muscle concentrated high, close to the body. On the basis of rotational dynamics, explain why this distribution of mass is advantageous.

Running Mammals

Rotating Wheel

There are a few factors that will determine the rotation of a rigid body. Considering the purpose for which it is created, explain briefly why the handrim that the basketball players grab is almost as big as the wheel itself. Or you may like to comment on why this is not the case for the racers.