A baseball mass 145 gram is thrown straight upward with


A baseball (mass = 145 gram) is thrown straight upward with kinetic energy 4.35 Joule.

(a) When the ball has risen 9 meter, evaluate the work done by gravity. (Take g = 10 m/s2)

_______________J

(b) Determine the ball kinetic energy.

______________J

(c) Estimate what the ball speed.

_____________m/s

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Physics: A baseball mass 145 gram is thrown straight upward with
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