Q5.8Multiple choice
A body with mass 5 kg is acted upon by a force F = ( –3ˆi + 4 ˆj ) N. If its initial velocity at t = 0 is v = ( 6ˆi -12 ˆj ) m s –1 , the time at which it will just have a velocity along the y-axis is
- (a)never
- (b)10 s
- (c)2 s
- (d)15 s