Question

A ball of mass 100 kg collides with a wall while moving
with a horizontal velocity of 10 m/s and return with
velocity 8m/s if the collision time is 0.1 s then find the
average impulsive force exerted by the wall on the ball.​

Answer 1

Explanation:

Impulse = Change in momentum

ΔP=P

f

−P

i

=m(v

f

−v

i

)=0.1(30−(−20))=0.1×50=5Ns