Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 2

EASY

9th CBSE

IMPORTANT

Earn 100

A body of mass $25 k g$ has a momentum of $125 k g m s^{- 1}$ . Calculate the velocity of the body.

Important Questions on Force and Laws of Motion

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 3

Calculate the momentum of a toy car of mass

200 g

moving with a speed of

5 m s^{- 1}

.

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 5

Calculate the momentum of the following:
An elephant of mass

2000 k g

moving at

5 m / s

.

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 5

Calculate the momentum of the following:
A bullet of mass

0.02 k g

moving at

400 m / s

.

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 1

A plastic ball and a clay ball of equal masses, travelling in the same direction with equal speeds, strike against a vertical wall. From which ball does the wall receive a greater amount of momentum?

MEDIUM

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 2

A car is moving on a level road. If the driver turns off the engine of the car, the car’s speed decreases gradually and ultimately it comes to a stop. A student says that two forces act on the car which brings it to a stop. What could these forces be? Which of these two forces contributes more to slow down and stop the car?

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 4

Define one newton force.

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 5

What is the unit of force?

EASY

9th CBSE