Question

A body with mass 2 kg is acted upon by a force
Ē={-6i +8j N. If its initial velocity at t = 0 is
v = {18i-16jms-1 the time at which it will just
have a velocity along the y-axis is
(1) Never
(2) 6s
(3) 35
(4) 5 s
​

Answer 1

Answer:

t = 6 sec

Vx = 0

V = u +at

a = F/M

a = 10/2 = 5

ux = 18

V = 0

t = 6 sec

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