A force of 10N act on a body of mass 5Kg for 2 sec than change in momentum is
Change in momentum = Force x Time
= 10N x 2s
= 20 Ns
Now, we know that momentum = mass x velocity
Initial momentum = 5kg x 0 = 0
Final momentum = 5kg x v (let's assume the velocity gained by the body in these 2 seconds is 'v')
Change in momentum = Final momentum - Initial momentum
20 Ns = 5kg x v - 0
v = 20 Ns / 5kg
v = 4 m/s
Therefore, the change in momentum is 20 Ns and the final velocity of the body is 4 m/s.
The change in momentum of an object can be calculated using the formula:
Change in momentum = Force × time
Given that the force acting on the body is 10N and the time is 2 seconds:
Change in momentum = 10N × 2s
Change in momentum = 20 N·s
Therefore, the change in momentum of the body is 20 N·s.