EASY
9th Chhattisgarh Board
IMPORTANT
Earn 100

When we jump on the same position in a moving train, we fall back on the same position again. Why does it happen so?

Important Questions on Force and Laws of Motion

EASY
9th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-9>Chapter 5 - Force and Laws of Motion>Discuss>Q 1
Why does a cricketer pull his hands backwards while catching a ball coming at a high speed?
EASY
9th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-9>Chapter 5 - Force and Laws of Motion>Discuss>Q 2
When we jump from a height on a cemented floor we get hurt more as compared to when we jump from the same height on a bundle of hay. Explain the reason.
EASY
9th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-9>Chapter 5 - Force and Laws of Motion>Discuss>Q 3
A body moving at a constant speed is made to stop in 0.25 s by applying a force of 200 N. Calculate the initial momentum of the body.
EASY
9th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-9>Chapter 5 - Force and Laws of Motion>Discuss>Q 4
A force of 5 N leads to an acceleration of 8 m s-2 on a body of mass m1. Same force causes an acceleration of 24 m s-2 on another body of mass m2. If both the bodies are tied together, how much acceleration will be produced by the same force?
EASY
9th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-9>Chapter 5 - Force and Laws of Motion>Discuss>Q 5

If the net unbalanced force becomes zero, will the momentum also become zero? Explain.

EASY
9th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-9>Chapter 5 - Force and Laws of Motion>Discuss>Q 1
If the action and reaction are always equal then explain how a bull is able to pull a cart forward?
EASY
9th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-9>Chapter 5 - Force and Laws of Motion>Discuss>Q 2
The motion of a rocket is based on which concept?
EASY
9th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-9>Chapter 5 - Force and Laws of Motion>Discuss>Q 3
A fire extinguisher is hurt by a rubber pipe that throws water at a very high speed. Explain this.