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# Acceleration when Direction Changes

APPHMC-GTDE1E

The position of a particle varies with time according to the equation $x(t) = t^3– 12t+5$. The acceleration of the particle when it changes direction is

A

$2 m/s^2$

B

$4 m/s^2$

C

$6 m/s^2$

D

$10 m/s^2$

E

$12 m/s^2$