A train is moving at a constant speed of 10 m/s. A passenger on the train throws a ball forwards with a speed of 3 m/s relative to the train. An observer on the ground sees the ball. What is the ball’s speed relative to the ground?
A train is moving at a constant speed of 10 m/s. A passenger on the train throws a ball forwards with a speed of 3 m/s relative to the train. An observer on the ground sees the ball. What is the ball’s speed relative to the ground?