Question

49 Blocks shown in figure moves with constant velocity 10 m/s towards right. All surface
friction force applied by Bon A is
REVN
20 N
Ground
20N
B
Ground
F
(1) ON​

Answer 1

Answer:

Explanation:

The blocks move with constant velocity. Thus the net force acting on the system is 0.

External force acting on A 20N. Since the net force acting on B is 0, friction must be 20N in opposite direction of external force.

External force acting on A is 0 and net force on A is 0. Hence friction on A due to B is 0.

Hence, answer is 0.