Newton's Third Law of Motion

Momentum and collisions exercises

What is the momentum of an 6 Kg bowling ball rolling at 3 m/s? Solution
Calculate the momentum of an 80 Kg ice skater sliding along the ice at 4 m/s. Solution

An explosive charge is placed between the two balls shown on the right. When the charge is detonated both balls move in opposite directions with different velocities?

If the orange ball has a velocity of 10 m/s after the explosion, can you calculate the velocity of the blue ball? Solution
If the orange ball has a velocity of 20 m/s after the explosion, can you calculate the velocity of the blue ball?
Consider the animation on the right. An explosive charge accelerates a 30 Kg cannon ball from the cannon at a speed of 600 m/s. What is speed with which the cannon recoils?
A 10 Kg rifle is used to fire a 30 g bullet at a target. If the bullet leaves the rifle with a speed of 700 m/s what is the speed with which the rifle recoils?
The guns on Nelson's Victory are shown on the right. 30 Kg cannon balls were often fired at speeds in excess of 600 m/s. These guns recoiled violently when fired. Were they too heavy or too light? Explain.
Consider the picture on the right of a V2 rocket been launched. The rocket weighing several tons is accelerating quickly. Is this an example of conservation of momentum? Explain.
Tanks fire heavy shellsa distance of many kilometres. Why is their little recoil from the immense force required to propel the shells?
An 70 Kg man on frictionless roller skates throws a 5 kg ball at 2 m/s at his friend. What is the speed with which the man moves backwards?