A body with mass 5 kg is acted upon a force F=(-3i+4j) N.If its initial velocity at t=0 is v=(6i-12j)m/s.The time at which it will just have a velocity along the y-axis is

Options

(a) Never
(b) 10 s
(c) 2 s
(d) 15 s

Correct Answer:

10 s

Explanation:

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