Question

Is work energy theorem valid in non-inertial frames?

Answer 1

Answer ⇒ Answer can be both yes and no, depending upon the cases. 

Explanation ⇒ 
We know that the non-inertial frame with the real forces cannot be explained by the dynamics of the body. 
Thus, Work energy Theorem will not be valid in this case.

In this given case, If we consider the PSEUDO Force then the Newton's laws of the motion can be applied. As the result of which Non-Inertial frame can be treated as the Inertial frame, Hence, work energy theorem will be valid in the case. 


Hope it helps.  

Answer 2

HEY!!

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⏩In a non- inertial frame, pseudo force also comes into an account.

⏩As we know that pseudo force does not exist, work - energy theorem is not valid in in non- inertial frames.