Unit 3 FORCES AND MOTION 111 EXERCISE M U T Choose the best possible answer A ball is thrown vertically upwards at 19.6 m/s. For its complete trip (up and back down to the starting position), its average speed is: A. 19.6 m/s. B. 9.8 m/s. C. 6.5 m/s. D. 4.9 m/s.
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