a ball is dropped from height of 50m.Find the time taken to reach the ground
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Answered by
2
Answer:
Distance = 50m
Speed = Gravity = 9.8 m/s
Time Taken = Distance /Speed = 50/9.8 = 5.1 seconds. (approx.)
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Answered by
0
Explanation:
h-50m
u-0
a-9.8m/s
*speed just before it hits the ground* :
v²-u²=2as
v²-(0)²=2×(9.8×50)
v²=980
v = _/980
v= 31.3
how long it took to reach the ground:
v = u + at
=50+(9.8)t
9.8t=50
t=50/9.8
t=5.12s
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