A stone that starts at rest free falls for 7.0 s. How far does the stone fall in this time?

asked Apr 25, 2019 43.1k views

3 votes

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5 votes

Gravitational acceleration is approx 9.8 m/s
Time is 7s

a=9.8 m/s
t=7s

a = d/t^2

therefore:

d = a * t^2

d = 9.8 * 7^2

d = 9.8 * 49

d = 480.2 [m]

Kathryn answered Apr 30, 2019

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