A 12 kg object is at rest on a horizontal surface. What is the normal force acti

A 12 kg object is at rest on a horizontal surface. What is the normal force acting on it?

A 12 kg object is at rest on a horizontal surface. What is the normal force acting on it?

Correct Answer: 120 N

Step 1: Identify the mass of the object. The mass is given as 12 kg.
Step 2: Understand that the normal force is the force that supports the weight of the object resting on a surface.
Step 3: Recall the formula for weight, which is weight (W) = mass (m) * acceleration due to gravity (g).
Step 4: Use the value of acceleration due to gravity, which is approximately 10 m/s².
Step 5: Calculate the weight of the object: W = 12 kg * 10 m/s².
Step 6: Perform the multiplication: 12 * 10 = 120 N.
Step 7: Conclude that the normal force (N) acting on the object is equal to its weight, which is 120 N.

Normal Force – The normal force is the force exerted by a surface to support the weight of an object resting on it, acting perpendicular to the surface.
Weight Calculation – Weight is calculated using the formula W = mg, where m is mass and g is the acceleration due to gravity.
Equilibrium of Forces – For an object at rest on a horizontal surface, the normal force balances the weight of the object, resulting in no net vertical force.