HARD

11th West Bengal Board

IMPORTANT

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A thin uniform rod of mass $m$ and length $l$ is free to rotate about its upper end. When it is at rest, it receives an impulse $J$ at its lowest point perpendicular to its length. Calculate angular velocity.

Important Questions on Motion of System of Particles and Rigid Body

HARD

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 10 - Motion of System of Particles and Rigid Body>EXERCISE>Q 17

A thin uniform rod of mass

m

and length

l

is free to rotate about its upper end. When it is at rest, it receives an impulse

J

at its lowest point perpendicular to its length. Calculate kinetic energy.

HARD

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 10 - Motion of System of Particles and Rigid Body>EXERCISE>Q 17

A thin uniform rod of mass

m

and length

l

is free to rotate about its upper end. When it is at rest, it receives an impulse

J

at its lowest point perpendicular to its length. Calculate linear velocity of the mid point of the rod, immediately after the impact.

HARD

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 10 - Motion of System of Particles and Rigid Body>EXERCISE>Q 18

A uniform circular disc of moment of inertia

0.2 kg . m^{2}

and radius

0.15 m

is mounted on a horizontal cylindrical axle of radius

0.015 m

and negligible mass. Calculate the angular velocity acquired from rest by the application for

12

seconds of force of

20 N

tangential to the axle.

HARD

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 10 - Motion of System of Particles and Rigid Body>EXERCISE>Q 18

A uniform circular disc of the moment of inertia

0.2 kg . m^{2}

and radius

0.15 m

is mounted on a horizontal cylindrical axle of radius

0.015 m

and negligible mass. Calculate the kinetic energy acquired from rest by the application for

12

seconds of a force of

20 N

tangential to the axle.

HARD

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 10 - Motion of System of Particles and Rigid Body>EXERCISE>Q 18

A uniform circular disc of moment of inertia

0.2 kg . m^{2}

and radius

0.15 m

is mounted on a horizontal cylindrical axle of radius

0.015 m

and negligible mass. Calculate the time required to bring the disc to rest if a constant braking force of

1 N

were applied tangentially to its rim. Neglect frictional loss.

HARD

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 10 - Motion of System of Particles and Rigid Body>EXERCISE>Q 19

A cord

3 m

long is coiled around the axle of a wheel. The cord is pulled with a constant force of

40 N

. When the cord leaves the axle, the wheel is rotating at

2 rev / s

. Determine the moment of inertia of the wheel. Neglect friction.

HARD

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 10 - Motion of System of Particles and Rigid Body>EXERCISE>Q 20

How far above its centre should a billiard ball be struck in order to make it roll without any initial slipping. Radius of ball is

R

and the impulse given is purely horizontal.

HARD

11th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART I : CLASS 11>Chapter 10 - Motion of System of Particles and Rigid Body>EXERCISE>Q 21

A bullet of mass

10 g

and speed

500 m / s

is fired into a door and gets embedded exactly. at centre of the door. The door is

1.0 m

wide and weighs

12 kg

. It is hinged at one end and rotates about a vertical axis practically without friction. Find the angular speed of the door just after the impact.

A thin uniform rod of mass m and length l is free to rotate about its upper end. When it is at rest, it receives an impulse J at its lowest point perpendicular to its length. Calculate angular velocity.

Important Questions on Motion of System of Particles and Rigid Body

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A thin uniform rod of mass $m$ and length $l$ is free to rotate about its upper end. When it is at rest, it receives an impulse $J$ at its lowest point perpendicular to its length. Calculate angular velocity.