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17-01-2017
Physics

contestada

A 9kg bowling ball rolls of a table and strikes the ground. If the ball is in the air for 0.5 sec, how fast is the ball moving when it hits the ground?

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Аноним Аноним

17-01-2017

falling for 1 second it would have accelerated to 9.8 metres per second

so the answer is 9.8*0.05=0.49m/sec

that is your answer

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