A spacecraft of mass 2000 kg is initially at rest in deep space
PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A spacecraft of mass 2000 kg is initially at rest in deep space. It ejects 50 kg of gas straight backward at 500 m/s relative to the spacecraft. Neglect external forces. Calculate the spacecraft’s speed just after the gas is expelled.