Q.
The displacement x of a particle moving in one dimension under the action of a constant force is related to time t by the equation t=x+3, where x is in meters and t is in seconds. Find the displacement of the particle when its velocity is zero.
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a
zero
b
12 m
c
6 m
d
18 m
answer is A.
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Detailed Solution
t=x+3, Differentiating with respect to t, we get 1=12xdxdt+0 or dxdt=2xWhen velocity is zero, 2x=0 or x=0.
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