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A particle of mass 10 kg is moving in a ...

A particle of mass 10 kg is moving in a straight line. If its displacement, `x` with time t is given by `x=(at^(3)+bt+c)`m, the force acting on it at the end of 4 s is 240 N. Its displacement at `t=0` is -10 m and its velocity at `t=0` is -2 m/s. Here, values of a, b, c and acceleration are in the proper SI units :

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The correct Answer is:
`(a) rarr (s); (b) rarr (p); (c) rarr (q); (d) rarr (r)`
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