Question

Two blocks of masses 20 kg and 10 kg are kept on a rough horizontal floor. The coefficient of thiction!
between both blocks and floor is u = 0.2. The surface of contact of both blocks are smooth. Horizontal
forces of magnitude 20 N and 60 N are applied on both the blocks as shown in figure.

Column-I
Column-II
(P) Frictional force acting on block of mass 10 kg
(1) has magnitude 20 N
(Q) Frictional force acting on block of mass 20 kg
(2) has magnitude 40 N
(R) Normal reaction exerted by 20 kg block on 10 kg block (3) is zero
(S) Net force on system consisting of 10 kg block
(4) has magnitude 60 N
and 20 kg block
(A) P-1, Q-1, R-2, S-3
(B) P-1, Q-1, R-3, S-3
(C) P-2, Q-2, R-1, S-1
(D) P-2, Q-2, R-3, S-4​

Answer 1

D is your correct answer

Answer 2

Answer:

A is the correct answer

Explanation: