meerkat18 meerkat18

14-12-2016
Physics

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A boy drops a ball from an observation tower. The ball hits the ground in 5.0 s. What is the ball's velocity at the time of impact?
A. 0 m/s
B. 98 m/s
C. 49 m/s
D. 123 m/s

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mathssydney mathssydney

14-12-2016

C.49.5m/s
.............

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