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AP® Physics C: Mechanics

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Work-KE Conceptual

APPHMC-KNSP5W

An 8-kg cat is dragged along a hardwood floor such that her final velocity is $80 cm/s$ after being dragged through $2m$.

She is initially at rest. In this time interval, the work done on the cat by the normal force exerted by the floor is closest to

A

Zero

B

$1.88 J$

C

$2.56 J$

D

$78.48 J$

E

$156.96 J$