A ball is thrown upwards and returns to its starting point after 6 seconds.Calculate the maximum height reached
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Answer: 45m
Explanation: Time of flight
T = 2u/g
6 = 2u/10ms^-2
u = 30ms^-1
Maximum height
H. = u^2/2g
H = 30*30/2*10
H = 45m
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