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AP® Physics 1 & 2

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Moderate

Calculate Cart's Displacement

APPH12-4VQE1I

A cart begins from rest at time $t=0$ from the top of a long incline and rolls downhill with constant acceleration. At time $T$, the cart has rolled a distance $d$ from its starting point. How far has the cart rolled at time $3T$?

A

$3d$

B

$6d$

C

$9d$

D

$12d$