EASY
9th CBSE
IMPORTANT
Earn 100

State Law of conservation of momentum.

Important Questions on Forces and Laws of Motion

EASY
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 2 - Forces and Laws of Motion>Assignment>Q 15
What would happen if a fielder stops the fast-moving ball suddenly? Justify your answer.
EASY
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 2 - Forces and Laws of Motion>Assignment>Q 16
State newton's third law
EASY
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 2 - Forces and Laws of Motion>Assignment>Q 16
(b) In a collision between a heavier and a lighter body, how do the forces experienced by the two bodies compares?
EASY
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 2 - Forces and Laws of Motion>Assignment>Q 17
While catching a fast moving ball, a fielder gradually pulls his hand backward. Give reason
EASY
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 2 - Forces and Laws of Motion>Assignment>Q 18
A man pushes a box of mass 50 kg with force of 80 N. What will be the acceleration of the box due to this force? What would be the acceleration if the mass were doubled?
EASY
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 2 - Forces and Laws of Motion>Assignment>Q 19
State Newton's third law of motion
EASY
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 2 - Forces and Laws of Motion>Assignment>Q 19

In the following table the mass and speed of two bodies are given. Which body has more momentum? Justify your answer.

Body Mass (kg.) Speed m/s
A 1 10
B 2 9

 

EASY
9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 2 - Forces and Laws of Motion>Assignment>Q 20
A swimmer is able to swim in a forward direction in a swimming pool only when he is pushing the water in the backward direction. Give reason for the above mentioned statement and justify the same.