Question
Suppose a spaceship heading directly away from the Earth at $0.750c$ can shoot a canister at $0.500c$ relative to the ship. (a) What is the velocity of the canister relative to the Earth, if it is shot directly at the Earth? (b) If it is shot directly away from the Earth?
1. $0.400c$ away from Earth
2. $0.909c$ away from Earth
Solution Video