1.

The displacement (x) of particle depends on time (t) as `x = alpha t^(2) - beta t^(3)`.A. The particle will return to its starting point after time `alpha//beta`B. The particle will come to rest after time `2 alpha//3beta`C. The initial velocity of the particle was zero but its initial acceleration was not zeroD. No net force will act on the particle at `t = alpha//3 beta`

Answer» Correct Answer - A::B::C::D


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