Answer: Option D We always use FLHR to find the force on the wire. But magnetic forces is a action-reaction pair. So when the force...

Answer: Option C For such questions, always look at the blocks as one single system and find the acceleration of the whole as one. That...

Refer to this MCQ from PurePhysics 2015P1Q6 Answer: Option C

Take note how to phrase the action-reaction pair, and also the differences and similarities of a action-reaction pair.