A ball thrown vertically upwards returns to the hand in 4.8s. (a.) How high did the ball go? (b.) What was the ball's initial speed? (c.) At what time(s) is the ball's speed equal to 19.6 m/s?
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all answer is calculated by taking g= 10
only last one is calculated by taking g= 9.8(for easy calculation)...
I hope you got your answer......
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