You and Mae are in free-float frames. Mae has just passed you, traveling at a speed of 60 km/hr. You throw a ball toward her at a speed of 60 km/hr. What will Mae see the ball doing?
A. She'll see the ball coming toward her at 60 km/hr.
B. The ball will be stationary, floating freely in her own reference frame.
C. She'll see the ball moving away from her at 60 km/hr.
D. She'll see the ball coming toward her at 120 km/hr.
Answer:B
You and Mae are in free-float frames. Mae has just passed you, traveling at a speed of 60 km/hr. You throw a ball toward her at a speed of 60 km/hr. What will Mae see the ball doing?
A. She'll see the ball coming toward her at 60 km/hr. B. The ball will be stationary, floating freely in her own reference frame. C. She'll see the ball moving away from her at 60 km/hr. D. She'll see the ball coming toward her at 120 km/hr.