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Classical Mechanics

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Rolling up a Ramp

CLMECH-WWGPN1

A solid $50\space g$ ball rolls up a $30^\circ$ ramp, coming to rest $3.0\space m$ higher than its original position. If a constant force of $1.2\space N$ of air resistance acts against the ball as it rolls up the ramp, what was its initial speed?

A

$7.2\space m/s$

B

$8.6\space m/s$

C

$12\space m/s$

D

$16\space m/s$

E

$19\space m/s$