PHYSICS · Subjective · A Level · Physics · Turning points in physics · Turning points in physics
Problem
A spaceship moves at a speed of 0.9c . The driver in the spaceship measures that it takes the spaceship 20 ns to pass over a golf course. A golfer standing on the golf course observes the spaceship passing. How much time does the golfer think it takes for the spaceship to pass over the golf course?