Question

a punching machine of mass 100 gram moving at 100 metre per second strikes a metal surface for 0.1 second the force of punching machine on metal is
​

Answer 1

Answer:

100 N

Explanation:

Force = Change in momentum / Time elapsed

= (mu - 0) / t

= mu/t

= (100 g × 100 m/s) / (0.1 s)

= (0.1 kg × 100 m/s) / (0.1 s)

= 100 kg m/s²

= 100 N

Answer 2

$\large\blue{heya mate!!}$

Force = Change in momentum / Time elapsed

= (mu - 0) / t

= mu/t

= (100 g × 100 m/s) / (0.1 s)

= (0.1 kg × 100 m/s) / (0.1 s)

= 100 kg m/s²

= 100 N