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AP® Physics C: Mechanics

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Stacked Blocks

APPHMC-CIUCXJ

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

Consider the stack of blocks shown above. The system is in static equilibrium.

How much force does the block with weight $40 N$ exert on the block with weight $20 N$?

The bar with weight $10 N$ is horizontally balanced such that equal portions of its weight are distributed on the two ends.

A

$25 N$

B

$30 N$

C

$35 N$

D

$50N$

E

$65N$