Question

A 20 g fridge magnet is being held onto a fridge by a 0.9 N force. What is the normal force?

Answer 1

Given:

Mass of fridge = 20 g

Force = 0.9 N

Let's find the normal force.

Here, the magnet is at rest. SInce it is at rest, the upward and downward force will balance each other.

F = mg

Also, the inward and outward force will baclence each other.

N = Fb

Hence:

N = 0.9 N

Therefore, the normal force acting on the magnet is 0.9 N.

ANSWER:

0.9 N