A cannon of mass fires a shell of mass with a speed of relative to the ground.
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A cannon of mass 500kg fires a shell of mass 5kg with a speed of 200m/s relative to the ground.
(i) Calculate the recoil speed of the cannon immediately after firing.
(ii) The cannon then rolls back on a horizontal surface where the coefficient of kinetic friction between the wheels and the ground is 0.10. Estimate the distance the cannon travels backward before coming to rest.