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What happened to potential energy that an elevator loses in coming down from the top of building to stop at the ground floor?

What happened to potential energy that an elevator loses in coming down from the top of building to stop at the ground floor?

Grade:12th pass

2 Answers

Arun
25750 Points
4 years ago
An elevator descends from the top of a building to a stop at the ground.
The potential energy (E) of the elevator is defined as,
E = mgy
Where m is the mass of the elevator, g is the acceleration due to gravity of earth and y is the height of the elevator from the earth.
The potential energy of the elevator at the top will be maximum since y is maximum at the top and at the ground will be zero since y is zero at the ground. The loss of potential energy of the elevator descends from the top of a building to a stop at the ground floor used in the mechanical work of the elevator when it comes from top to ground.
 
Hope it helps
Vikas TU
14149 Points
4 years ago

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