Physics

To determine the force exerted by N on M and their accelerations we can follow these steps:

Step 1: Determine the force exerted by N on M

According to Newton's Third Law, the force that block M exerts on block N is equal in magnitude and opposite in direction to the force that block N exerts on block M. Therefore, if M exerts a force of 45 N on N, then N exerts a force of 45 N on M.

Step 2: Determine the accelerations of M and N

For Block M:

Using Newton's Second Law:

Where:

(force exerted by M on N),

(mass of block M).

Calculating the acceleration of M:

For Block N:

Using Newton's Second Law again: