Question

muscular force, mechanical force, frictional force explain​

Answer 1

Muscular Force:-

The force that results due to the action of muscles is known to be muscular force. As our body is in contact with the object, we could make muscular force as contact force. Muscular force is always used while walking, running, pushing or lifting things etc.

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Mechanical Force:-

The force that is exerted by machines to do any work is said to be mechanical force. Machines cannot produce force by their own.

Example:-

• Sail boats use energy of the wind just to move from one direction to another.
• A car also moves then only when its wheel move. Car burn fuels like petrol or diesel just to generate mechanical force.

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Frictional Force:-

The force that acts upon the two surfaces that are in contact and opposes the motion of one object over the other is known to be frictional force.

It opposes the the motion of the object that is moving. There is roughness in surfaces of the objects that are in contact, this is the main reason for frictional force.

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Answer 2

Muscular Force :-

Force which is exerted by muscles of the body is called Muscular force.

Mechanical Force :-

Mechanical forces are those forces which involve contact with the other object.

Frictional Force :-

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.