Question

u230. A ball of 50 g is dropped vertically downwards fromthe top of a 5 m high tower. If the ball hits groundand bounces back without any loss of energy, thenthe impulse of force exerted on the ground in onesecond will be(a) 0.5 Ns (b) 5 x 10-2 Ns (C) 10 Ns (d) 1 Ns​

Answer 1

Answer:

please refer to the attachment