question_answer

A particle is moving in a straight line. The particle was initially at rest. Acceleration versus time graph is shown in the figure. Acceleration of particle is given by \[a=3\text{ }sin\,\,\pi t\]in\[m/{{s}^{2}}\]. The time instant (s) when the particle comes to rest is

A) \[t=0,1,2,3,4\]     

B) \[t=1,3\]              

C) \[t=0,2,4\]           

D) only at \[t=0\]