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juin [17]
3 years ago
6

Motion equation of object is

Physics
1 answer:
Ganezh [65]3 years ago
5 0

Take the derivative to find the velocity of the object:

v=\dfrac{\mathrm dx}{\mathrm dt}=-12+6t

The object stops when v=0:

-12+6t=0\implies6t=12\implies t=2

so the answer is E.

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