NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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Analyzing +4 | -1

Statement-1: A block of mass '

M

' is placed on a moving railroad car moving with velocity '

v

'. The kinetic energy of the block is

\frac{1}{2} M v^2

in all frames.

Statement-2: The kinetic energy of a system or body is different in different frames.

View answer and explanation

Correct option: D

Statement-1 is false, Statement- 2 is true.

Option D (Statement-1 is false, Statement- 2 is true) is correct. Kinetic energy depends on the frame of reference, so Statement-1 is false, and Statement-2 correctly states that kinetic energy varies with different frames of reference.

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