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A ball is dropped vertically from a height of 100m and it's velocity is 5m/s.then find the time taken to reach the ground?

Subash Sah , 7 Years ago
Grade 9
anser 1 Answers
Khimraj

Last Activity: 7 Years ago

Just  apply second equation of motion
h = ut + ½gt2
100 = 5t + 5t2
t2 + t -20 =0
(t+5)(t-4) =0
t = -5(not possible) , 4
SO t = 4 sec
Hope it clears. If you like answer then please approve it.
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