Question

A ball rolling along the ground gradually slows down and finally comes to rest, which force is acting over here?
A) Force of friction
B) Magnetic force
C) Muscular force
D) None of the above

Answer 1

Hint:Here we have to examine each of the options one by one to get the correct answer.
The concept of resisting force is applied here.

Complete step by step solution:
Friction: Friction is the resistance of one object moving relative to another in response to motion. Like gravity or electromagnetism, it is not a fundamental force. Instead, scientists claim it is the product of the electric attraction between two interacting surfaces between charged particles. Friction is needed in all types of motions. We can walk properly because of friction. Friction is applied on car brakes.

Magnetic force: Magnetic force is attraction or repulsion that occurs between electrically charged objects due to their motion. It is the fundamental force responsible for such phenomena as the operation of electric motors and the attraction of iron magnets.
Magnetism is the energy that magnets produce as they draw or repel each other. Magnetism is triggered by the acceleration of electrical charges. Any material is made up of smaller units called atoms. Each atom has electrons, particles that bear electrical charges.

Muscular force: Muscular force is a type of contact force is physics. As the muscular force can only be applied to the object while our body is in contact with the object, thus, the muscular force is a contact force.

Contact forces are forces that work between two objects that physically meet each other.
Here in the question as the ball bounces on the ground, there is a friction force that speeds down the momentum of the ball and eventually makes it zero.

Hence, option A is correct.

Note:Here we may get confused as all the forces may appear the same. But we should remember that only frictional force is the resisting force.