Newton's Laws of Motion

Question 1

The property of a body by virtue of which it opposes any change in its state of rest or motion.

Answer 1

Inertia

Question 2

What is the measure of inertia?

Answer 2

Mass

Question 3

Two types of frame:

Answer 3

Inertial frame and Non-Inertial frame.

Question 4

Examples of Inertial Frame:

Answer 4

1. Any frame fixed with ground or ground. 2. Any frame moving with constant velocity wrt. ground.

Question 5

Examples of non-Inertial Frame:

Answer 5

1. Any frame(object) moving with some acc. wrt to ground. 2. Any rotating frame.

Question 6

Ground (Earth) is Inertial or non-Inertial Frame?

Answer 6

Ground is non-inertial frame but for numerical purpose it is taken as inertial frame.

Question 7

2nd law of motin:

Answer 7

“Rate of change of momentum is directly proportional to the force applied.”

Question 8

While drawing FBD all the forces should be either in the direction of motion or perpendicular to it. If it is not so then what will you do.

Answer 8

Resolve.

Question 9

While drawing FBD if answer of acc. is -ve What does it mean?

Answer 9

It means our answer is correct we have to only change the direction of acceleration.

Question 10

Meaning of frame?

Answer 10

Object

Question 11

Trick in Pulley System for acc. relation betw. two block.

Answer 11

Multiply the Tension(T) of a block with with its acc. - Multiply the Tension((T) of another block with its accn. ) and put it equal to zero.

Ta1-7Ta2=0
a1=7a2.