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SAT® Subject Test in Physics

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Moderate

Toy Train

SATPHY-14FJ9G

The velocity-time graph below represents the velocity of a toy train as it moves north and south, with zero velocity near the middle of the vertical axis.

During which interval(s) is the toy train speeding up?

A

$A $ only

B

A and E only

C

$A, B$, and$ C$ only

D

$A$ and $D$ only

E

$C$ and $D$ only