A 1200-kg cannon suddenly fires a 100-kg cannonball at 35 m/s. What is the recoil speed of the cannon? Assume that frictional forces are negligible and the cannon is fired horizontally.

Question

A 1200-kg cannon suddenly fires a 100-kg cannonball at  35 m/s. What is the recoil speed of the cannon? Assume that frictional forces are negligible and the cannon is fired horizontally.

Quizplus · Accepted Answer

Using the conservation of momentum, the recoil speed of the cannon can be calculated as follows: (mass of cannon) * (recoil speed) = (mass of cannonball) * (speed of cannonball). Solving for the recoil speed gives: 1200 * v = 100 * 35, so v = (100 * 35) / 1200 = 2.9 m/s.

A 1200-Kg Cannon Suddenly Fires a 100-Kg Cannonball at