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Subject :NSO    Class : Class 4

A boy is running down the stairs at a constant speed. Which of the following is true regarding the amount of potential energy and kinetic energy?

A Kinetic energy increases and potential energy decreases.
B Potential energy increases and kinetic energy decreases.
C Potential energy decreases and kinetic energy remains unchanged.
D Kinetic energy decreases and potential energy remains unchanged.


Ans 1:

Class : Class 4
correct ans is C

Ans 2:

Class : Class 8
The correct answer is C

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