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28-05-2022
Physics

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A ball falls down from the top of a height of 70m.
How much time the ball will take to reach the ground?

A ball falls down from the top of a height of 70m How much time the ball will take to reach the ground class=

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Аноним Аноним

04-06-2022

Height=h=70m
Acceleration due to gravity=g=9.8m/s²
Time be t

Apply second equation of kinematics

h=1/2gt²
gt²=2h
9.8t²=2(70)
t²=140/9.8
t²=14.3
t=3.78s

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