Al interval (B) Answer the following questions.
1. What is inertia? Write down the relation between mass and inertia?
It is the
orkoms
motion
The inertia
sto be in
external
led law
2. What is acceleration? What would be the acceleration in a body
moving with uniform velocity and why?
3. State Newton's first law of motion and write down any three
examples to justify it.
4. State Newton's second law of motion and prove F = ma
5. Newton's first law of motion is also called the law of inertia, why?
Clarify your answer.
6. An electric fan continues in its motion even after the switch is put
off, why?
7. Dust particles fall down when a carpet or a piece of cloth is beaten
by a stick, why?
8. While swimming a person pushes water backward, why?
9. A cricket player catches the ball leaning towards to the ground, why?
10. Prove that s = ut +1/2 at-
11. State Newton's third law of motion and write any three
applications of it.
12. Prove that vi= u+ 2as.
Loed on
versely
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