NEET Physics Question - Work Energy and Power - Work Done by Constant and Variable Forces

Assertion (A): Work done by a force is always same in all inertial frame of references.

Reason (R): Work is an invariant physical quantity.

Both (A) & (R) are true and the (R) is the correct explanation of the (A)

Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Solution:

Work done (\(W = \vec{F} \cdot \vec{d}\)) depends on displacement (\(\vec{d}\)) which is frame-dependent in different inertial frames. Therefore, work is not always the same and is not an invariant quantity. Both Assertion and Reason are false.

Rankers Physics

Work in Inertial Frames

Solution:

Leave a Reply Cancel reply