Question

ans this question wid explanation

Answer 1

hello here is your answer by Sujeet yaduvanshi ☝☝☝☝☝☝☝☝

We know that -) Acceleration (a) = dv/dt .
In this case, the on the application of upward force, the whole system moves with constant velocity "v" in upward direction i.e. dv = 0 .

So, acceleration is 0.

If acceration is zero, the net force ( Mass \times Acceleration) must be zero on each block. So, net force on the block of mass 2m is zero.


Answer:-0

Answer 2

since the system has a constant velocity this means net force on the system is zero
(a) is correct
rest is in attachment