Question

Two objects which have a total mass of 12.0 kg are placed adjacent to one another. The object on the left is 7.4 kg, and it pushed to the right with a force of 37 Newtons. With what force does the left object push against the right object?

Answer 1

Answer:

22.89 N

Explanation:

F = 37 N

Let the acceleration in the system is a and f be the force between the tewo blocks.

Apply the Newton's second law

By the free body diagrams

F - f = 7.4 x a .... (1)

f = 12 x a ...... (2)

Adding both of them

37 = 19.4 x a

a = 1.9 m/s^2

Put in equation (2)

f = 12 x 1.9 = 22.89 N