Problem $7$:

While punting a football, a kicker rotates his leg about the hip joint. The moment of inertia of the leg is $3\mathrm{.}5kg*m^2$ and its rotational kinetic energy is $175$ J $.$

Part $($a$)$

What is the angular velocity of the leg in radians per second?

$=ra\frac{d}{s}$

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Part $($b$)$

What is the linear velocity of the tip of the punter's shoe, in meters per second, if it is $1\mathrm{.}3$ m from the hip joint?