Question

LACNTIJL
1.
(b) State four effects which a force can bring about. Give two examples in each case,
(a) Define force.
2. What do you understand by the following terms ?
(a) Contact forces
(b) Non-contact forces 63
3. (a) What do you understand by the term inertia ?
(b) What are its kinds ?
(C) Give two examples of each kind, stated in (b).
4. What do you understand by the term momentum?
5. State two factors which determine the momentum of a body.
6. State units of momentum in (i) CGS system (ii) SI system. 66
7. Define Newton's second law of motion.
8. Prove mathematically F = ma.
9. Define absolute units of force in CGS as well as SI system.
10. Derive the relation between newton and dyne.
11. State Newton's third law of motion and give two examples.​

Answer 1

Answer:

The pulling and pushing factor is called force

Answer 2

Answer:

Contact force

• A force which is the applied to another body through a rigid or non rigid connector is called contact force .

Examples

1. The force applied by bullocks on a bullock cart .
2. Hammer hiting a nail .