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AP® Physics 1 & 2

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Moderate

Atwood's Machine

APPH12-KXREEW

Two blocks are tied to a lightweight string and hung over a frictionless pulley, as shown in the above diagram.

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When released from rest, what is the acceleration of the $5\ \text{kg}$ block?

A

$9.8\text{ m/s}^{ 2 }$

B

$30\text{ m/s}^{ 2 }$

C

$3.3\text{ m/s}^{ 2 }$

D

$5\text{ m/s}^{ 2 }$