Question

Give 2Examples each for
a. Muscular force b. Contact force
c. Non - contact force

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Answer 1

(a). Example :- if you lift a brick from ground , then your muscles do work for lifting it hence, here muscular force applied by arms . similarly , pulling bed , door, riding cycle etc are example of muscular force.

(b) Pushing a car up a hill or kicking a ball or pushing a desk across a room are some of the everyday examples where contact forces are at work. In the first case the force is continuously applied by the person on the car, while in the second case the force is delivered in a short impulse.

(C)Examples of Non-Contact Forces are :

• Gravitational force.
• Magnetic force.
• Electrostatics.
• Nuclear force.