Velocity of a particle of mass 2 kg changes from v → 1 = ( - 2 i ^ - 2 j ^ ) m s - 1 to v → 2 = ( i ^ - j ^ ) m s - 1 after colliding with a plane surface.

The direction of change in momentum makes an angle tan - 1 1 3 with the positive x -axis.

The angle made by the plane surface with the positive x -axis is tan - 1 1 3 .

The direction of change in momentum makes an angle 90 ° + tan - 1 1 3 with the plane surface.

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A particle $A$ suffers an oblique elastic collision with a particle $B$ that is at rest initially. If their masses are the same, then after the collision

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Important Questions on Impulse and Collision

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JEE Advanced

IMPORTANT

Physics For Joint Entrance Examination JEE (Advanced): Mechanics II>Chapter 2 - Impulse and Collision>Exercises>Q 6

A ball strikes a wall with a velocity

\vec{u}

at an angle

θ

with the normal to the wall surface and rebounds from it at an angle

β

with the surface. Then

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JEE Advanced

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Physics For Joint Entrance Examination JEE (Advanced): Mechanics II>Chapter 2 - Impulse and Collision>Exercises>Q 7

Two masses, $2 m$ and $m$ are connected by an inextensible light string. The string is passing over a light frictionless pulley. The mass $2 m$ is resting on a surface and mass $m$ is hanging in the air as shown in the figure. A particle of mass, $m$ strikes the mass, $m$ from below in case $(i)$ with a velocity $v_{0}$ and in case $(i i)$ strikes mass $m$ with a velocity $v_{0}$ from top and sticks to it.

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JEE Advanced

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Physics For Joint Entrance Examination JEE (Advanced): Mechanics II>Chapter 2 - Impulse and Collision>Exercises>Q 8

A ball of mass m moving with a velocity

v

hits a massive wall moving towards the ball with a velocity

u .

An elastic impact lasts for a time

∆ t .

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JEE Advanced

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Physics For Joint Entrance Examination JEE (Advanced): Mechanics II>Chapter 2 - Impulse and Collision>Exercises>Q 9

A particle strikes a horizontal smooth floor with a velocity

u

making an angle

θ

with the floor and rebounds with velocity

v

making an angle

ϕ

with the floor. If the coefficient of restitution between the particle and the floor is e, then :

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JEE Advanced

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Physics For Joint Entrance Examination JEE (Advanced): Mechanics II>Chapter 2 - Impulse and Collision>Exercises>Q 10

A body of mass

2 kg

moving with a velocity

3 m s^{- 1}

collides with a body of mass

1 kg

moving with a velocity of

4 m s^{- 1}

in opposite direction. If the collision is head on and completely inelastic, then

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JEE Advanced

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Physics For Joint Entrance Examination JEE (Advanced): Mechanics II>Chapter 2 - Impulse and Collision>Exercises>Q 11

Velocity of a particle of mass

2 kg

changes from

{\vec{v}}_{1} = (- 2 \hat{i} - 2 \hat{j}) m s^{- 1}

{\vec{v}}_{2} = (\hat{i} - \hat{j}) m s^{- 1}

after colliding with
a plane surface.

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JEE Advanced

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Physics For Joint Entrance Examination JEE (Advanced): Mechanics II>Chapter 2 - Impulse and Collision>Exercises>Q 12

A steel ball of mass

2 m

suffers one-dimensional elastic collision with a row of three steel balls, each of mass

m

. If mass 2m has collided with velocity

ν

and the three balls numbered 1, 2, 3 were initially at rest, then after the collision
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Physics For Joint Entrance Examination JEE (Advanced): Mechanics II>Chapter 2 - Impulse and Collision>Exercises>Q 13

Two particles of masses

m_{1}

and

m_{2}

and velocities

u_{1}

and

α u_{1} (α \neq 0)

make an elastic head on collision. If the initial kinetic energies of the two particles are equal and

m_{1}

comes to rest after collision, then

A particle A suffers an oblique elastic collision with a particle B that is at rest initially. If their masses are the same, then after the collision

Important Questions on Impulse and Collision

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A particle $A$ suffers an oblique elastic collision with a particle $B$ that is at rest initially. If their masses are the same, then after the collision