you lift a box of mass m from the ground placing it at rest on a shelf at a height h taking the

Name: you lift a box of mass m from the ground placing it at rest on a shelf at a height h taking the box and the earth to be the system the change in potential energy is a mgh b zero c mgh d equal to the w
Uploaded: 2021-11-22T22:01:52-08:00
Duration: 2 min 33 s
Channel: Nishant Kumar
Description: you lift a box of mass m from the ground placing it at rest on a shelf at a height h taking the box and the earth to be the system the change in potential energy is a mgh b zero c mgh d equal to the w

Question

Nishant Kumar · Accepted Answer

Step 1: The work done by external forces is equal to the change in energy of the system.

Question

You lift a box of mass m from the ground placing it at rest on a shelf at a height h. Taking the box and the earth to be the system, the change in potential energy is a. mgh b. zero c. - mgh d. equal to the work done by gravity e. equal to the change in the total energy of the box

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