Question

Two blocks of masses 6 kg and 3 kg are kept in contact with each other on a frictionless
horizontal surface. If a force of 18 N is applied on the larger block what is the acceleration
of the system? What is the contact force between the two blocks?
A. 2 m/s?:4 N
B. 1 m/s2;2 N
C. 1 m/s?:4 N
D. 2 m/s2:6 N​

Answer 1

Answer:

acceleration = 18/9 = 2m/s

contact force = 6×2 = 12N