AP® Physics C: Mechanics

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Atwood Power

APPHMC-X1GWWE

Tomihiro Ono. Created for Albert.io. Copyright 2016. All rights reserved.

An Atwood machine (two objects connected via an ideal, massless cord which passes over a massless pulley) is set up with a $340 \text{ g}$ object $M$ on one side and a $230\text{ g}$ object $m$ on the other.

Both objects start from rest at $t=0\text{ s}$, at which point the objects are released. Object $M$ falls through a distance of $h = 0.50\text{ m}$ while object $m$ is pulled up by the same amount.

Determine the average power output of object $M$ on object $m$.

A

$0.300 \text{ W}$

B

$0.525 \text{ W}$

C

$1.31 \text{ W}$

D

$1.55 \text{ W}$

E

$1.85 \text{ W}$