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11 January, 03:51

Rhea kicks a soccer ball at 13 km/h to Sean. After kicking the ball, the speed of the soccer ball from Rhea's reference frame is 13 km/h. The speed of the soccer ball from Sean's reference frame is 22 km/h.

a. Rhea is standing still after kicking the ball, and Sean is running.

b. Sean is standing still, and Rhea is running while kicking the ball.

c. Both soccer players are standing still after the ball is kicked.

d. Both soccer players are running while the ball is in motion.

+2
Answers (2)
  1. 11 January, 03:56
    0
    Since the ball is moving at the same speed in Rhea's reference frame relative the speed it was kicked at, Rhea must be standing still. Since the ball is moving faster than the speed at which it was kicked from Sean's reference frame, he must be running towards the ball.

    This means A is the correct answer here!
  2. 11 January, 04:18
    0
    a. Rhea is standing still after kicking the ball, and Sean is running.
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Home » Physics » Rhea kicks a soccer ball at 13 km/h to Sean. After kicking the ball, the speed of the soccer ball from Rhea's reference frame is 13 km/h. The speed of the soccer ball from Sean's reference frame is 22 km/h. a.
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