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Anonymous Anonymous
  • 26-08-2014
  • Physics
Answered

A boy drops a stone from a cliff , which reaches the ground in 20 seconds. Calculate the height of the cliff.

Verified Answer :

TaylorBayley
TaylorBayley TaylorBayley
  • 26-08-2014

More suvat equations here, this time s=ut+1/2at^2 where s is the displacement, t is the time, and a is the acceleration.

So s=020+1/29.8120^2
simplified: s=1/29.81*(20)^2
s=1962
The height of the cliff is 1962m

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