Rankers Physics
Topic: Laws of Motion
Subtopic: Motion of Connected Bodies

Two blocks are in contact on a frictionless table. One has mass m and the other 2 m. A force F is applied on 2 m as shown in the figure. Now the same force F is applied from the right on m. In the two cases respectively, the ratio of force of contact between the two blocks will be: Image related to
1:1
1:2
2:1
1:3

Solution:

Acceleration of the blocks in both the case will be F/3m.

N1= m.a

N2= 2m.a

so N1/N2= 1/2

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