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SAT® Subject Test in Physics

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Moderate

Masses over a Pulley

SATPHY-0E1Q49

Below is a diagram showing two masses hanging by a rope over a pulley of negligible mass.

If friction is negligible, what is the magnitude of the acceleration of the masses?

A

$3.3 m/s^{2}$

B

$9.8 m/s^{2}$

C

$4.9 m/s^{2}$

D

$5.0 m/s^{2}$

E

$2.9 m/s^{2}$