Answer to Question #24397 in Mechanics | Relativity for Falore Temitope

Question

A projectile of mass 50kg is shot vertically upwards with an initial velocity of 100m/s. After 5s, it explodes into two fragments, one of which having mass 20kg travels vertically up with a velocity of 150m/s. What is the velocity of the other particile at that instant? Calculate the sum of momenta of the fragments 4s after explosion and show that it is equal to the momentum of the projectile at that instant if there were no explosion. (take g=9.8m/s2)