anzeller7640 anzeller7640
  • 23-12-2017
  • Physics
contestada

A 40kg rock is perched atop a cliff that is 50 m high. What is it’s potential energy?

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samuraijack
samuraijack samuraijack
  • 27-12-2017
Potential energy, is energy due to its position.

Given: Mass m = 40 Kg;  Height h = 50 m

Required: Potential energy P.E = ?

Formula:  P.E = mgh   P.E = (40 Kg)(9.8 m/s²)(50 m)

                P.E = 19,600 J
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