A toy cannon of mass 0.90 kg is mounted on a frictionless cart of mass 1.1 kg
PHYSICS · Subjective · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics
Problem
A toy cannon of mass 0.90 kg is mounted on a frictionless cart of mass 1.1 kg. The cart moves straight ahead at 0.50 m/s when the cannon fires a 0.10 kg projectile forward. In one or two sentences, explain why the combined center of mass of the cart, cannon, and projectile continues to move with the same velocity immediately before and immediately after the shot.