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AP® Physics C: Mechanics

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Two Adjacent Boxes

APPHMC-EXY01L

TOMIHIRO ONO. Created for Albert.io. Copyright 2016. All rights reserved.

A $4 kg$ box and a $5 kg$ box are next to each other. A child pushes from the $4 kg$ end with a force of $9 N$.

What is the acceleration of the $5 kg$ mass?

There is no friction acting on the blocks.

A

$1 m/s^2$

B

$1.25 m/s^2$

C

$1.8 m/s^2$

D

$2 m/s^2$

E

$2.25 m/s^2$