A bullet shot straight up return to its straight point in 10 sec the initial speed was ?
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After reaching its maximum height it would have come to rest and time for reaching maximum height would be 10/2 = 5s.
Now, v = u + at
so, 0 = u - at (a will be negative as there is retarded motion of ball)
so, u = gt = 9.8*5 = 49 m/s
(if g = 10, u = 10*5 = 50m/s)
Hope it helps.
Please mark it brainliest.
Now, v = u + at
so, 0 = u - at (a will be negative as there is retarded motion of ball)
so, u = gt = 9.8*5 = 49 m/s
(if g = 10, u = 10*5 = 50m/s)
Hope it helps.
Please mark it brainliest.
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