Answer to Question #49421 in Mechanics | Relativity for Aditya raj

Question #49421

A body with mass 5 kg is acted upon by a force F=(-3i+4j) N. If its initial velocity at t =0 is v =(6i-12j)msec^-1, the time at which it will just have a velocity along the y axis is
(1) never
(2)10sec
(3)2 sec
(4)15 sec

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