Question

Select One Option Correct from the following : A block P of mass m is placed on a horizontal frictionless plane. A second block of same mass m is placed on it and is connected to a spring of spring constant k. Then two blocks are pulled by a distance A. Block Q oscillates without slipping. What is the maximum value of frictional force between the two blocks?
(A)kA/2
(B)kA
(C)$\mu_smg$
(D)zero

Answer 1

d option is correct I think

Answer 2

Select One Option Correct from the following : A block P of mass m is placed on a horizontal frictionless plane. A second block of same mass m is placed on it and is connected to a spring of spring constant k. Then two blocks are pulled by a distance A. Block Q oscillates without slipping. What is the maximum value of frictional force between the two blocks?

(A)kA/2

(B)kA

(C)$\mu_smg$

(D)zero