You and Al Are Both Floating Freely in Your Spaceships

question 2

Multiple Choice

You and Al are both floating freely in your spaceships.Suppose that Al is moving away from you at 85 km/hr.You throw a ball in his direction at a speed of 75 km/hr.According to Al,which of the following is going on?

• A)He sees you moving toward him at 85 km/hr and the ball moving toward him at 75 km/hr.
• B)He sees you moving away from him at 85 km/hr and the ball moving toward him at 10 km/hr.
• C)He agrees that he is moving at 85 km/hr and the ball is moving at 75 km/hr while you are standing still.
• D)He sees you moving away from him at 85 km/hr and the ball moving away from him at 10 km/hr.