Question

a boy mass 50 kg jumps with a horizontal velocity of 1 m/s on to a stationary cart.if mass of cart is 5 kg, then combined velcity of the boy and cart is

Answer 1

By using conservation of momentum we can write as
m1v1 = m2v2
50 × 1 = 55 × v2
=→ v2 = 50/55
v2 = 10/11 m/s