Question

21. A force of 5 N acts on a body for 2 milli-
seconds. Calculate the impulse. If the mass of
the body is 5 g, calculate the change of velocity.
1) 2m/s
2) 4m/s
3) 6m/s
4) 10m/s​

Answer 1

Answer:

option 1 is correct

Explanation:

acceleration = dv/dt

where dv = change in velocity

force = mass*acceleration

5 = 0.005*dv/(0.002)

dv = 5*2/5 = 2 m/s

Answer 2

Answer:

1 is correct

Explanation:

refer to above soln.