Question

If the actual release height is 2h, what is the normal force exerted by the track after the block exits the loop onto the flat section?

Answer 1

The normal force exerted by the track on the block is 40 N after it exits the loop and moves onto the flat section.

Step-by-step explanation:

When the block exits the loop onto the flat section, the normal force exerted by the track is equal to the gravitational force acting on it. Since the problem states that the gravitational force on the block is 40 N, the normal force exerted by the track is also 40 N on the flat section after the block exits the loop. This assertion assumes that there are no other vertical accelerations or forces acting on the block other than gravity when it transitions to the flat section.