Physics - NLM Question with Solution | TestHub
Mark the correct option(s) after the system shown is released from rest (assume all surfaces to be frictionless).
Options:(select one or more)
Answer:
Solution:
When released, the hanging block m pulls the string down; the string tension pulls the pulley mounted on block M towards the wall, so M accelerates to the right while m moves down - (A) correct, (B) wrong.
As M moves right it stays in contact with m and pushes m to the right through the normal reaction between their vertical faces - (C) correct.
The free body diagram of M shows: its weight Mg downwards, the floor reaction R upwards, the string tension T pulling its pulley to the right (horizontal strand) and downwards (vertical strand), and the normal push N from m acting to the left - exactly as drawn in option (D), so (D) is correct.
Correct options: (A), (C), (D).
