A cannon of mass rests on a horizontal surface where the coefficient of kinetic…

PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A cannon of mass 500 kg500\,\text{kg} rests on a horizontal surface where the coefficient of kinetic friction between the cannon and the ground is 0.040.04. It fires a 4.0 kg4.0\,\text{kg} shell horizontally with a speed of 300 m s−1300\,\text{m\,s}^{-1} relative to the ground. (i) Calculate the initial recoil speed of the cannon immediately after firing. (ii) Determine the distance the cannon travels before coming to rest.

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