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SAT® Subject Test in Physics

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Ranking Acceleration of Spheres

SATPHY-YLLYKC

The diagram below shows four orange spheres moving in circular paths at constant speeds. The speeds are indicated by the red arrows.

The radius of the circular path for each is indicated by the green arrows. The mass of each sphere is labeled inside the boundary of the sphere.

How do the spheres rank, according to the magnitudes of their accelerations, greatest first?

A

4, 3, 1 and 2 tie

B

3, 1 and 4 tie, 2

C

3, 2 and 4 tie, 1

D

1, 2 and 3 tie, 4

E

1, 3, 2, 4