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A body $A$ experiences perfectly elastic collision with a stationary body $B$ . If after the collision the bodies fly apart in the opposite direction with equal speeds, the mass ratio of $A$ and $B$ is :-

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Important Questions on Centre of Mass, Momentum and Collisions

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Beta Question Bank for Medical: Physics>Chapter 9 - Centre of Mass, Momentum and Collisions>Exercise (Conceptual Questions)>Q 65

A collision is said to be perfectly inelastic when:-

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Beta Question Bank for Medical: Physics>Chapter 9 - Centre of Mass, Momentum and Collisions>Exercise (Conceptual Questions)>Q 66

A particle falls from a height

h

upon a fixed horizontal plane and rebounds. If

e

is the coefficient of restitution, the total distance travelled before rebounding has stopped is:-

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Beta Question Bank for Medical: Physics>Chapter 9 - Centre of Mass, Momentum and Collisions>Exercise (Conceptual Questions)>Q 67

If two masses m₁ and m₂ collide, the ratio of the changes in their respective velocities is proportional to :-

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Beta Question Bank for Medical: Physics>Chapter 9 - Centre of Mass, Momentum and Collisions>Exercise (Conceptual Questions)>Q 68

Two particles of mass

M_{A}

and

M_{B}

and there velocities are

V_{A}

and

V_{B}

respectively collides. After collision, they interchanges their velocities then ratio of

\frac{M_{A}}{M_{B}}

is :-

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Beta Question Bank for Medical: Physics>Chapter 9 - Centre of Mass, Momentum and Collisions>Exercise (Conceptual Questions)>Q 69

In the diagrams given below the horizontal line represents the path of a ball coming from left and hitting another ball which is initially at rest. The other two lines represents the paths of the two balls after the collision. Which of the diagram shows a physically impossible situation ?

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Beta Question Bank for Medical: Physics>Chapter 9 - Centre of Mass, Momentum and Collisions>Exercise (Conceptual Questions)>Q 70

Two identical balls, one moves with 12 m/s and second is at rest, collides elastically. After collision velocity of second and first ball will be :

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Beta Question Bank for Medical: Physics>Chapter 9 - Centre of Mass, Momentum and Collisions>Exercise (Conceptual Questions)>Q 71

A sphere

P

of mass

m

and velocity

\vec{v_{i}}

undergoes an oblique and perfectly elastic collision with an identical sphere

Q

initially at rest. The angle

θ

between the velocities of the spheres after the collision shall be:-

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Beta Question Bank for Medical: Physics>Chapter 9 - Centre of Mass, Momentum and Collisions>Exercise (Conceptual Questions)>Q 72

A ball is dropped from a height of

10 m

. If

40 %

of its energy is lost on collision with the earth then after the collision the ball will rebound to a height of-

A body A experiences perfectly elastic collision with a stationary body B. If after the collision the bodies fly apart in the opposite direction with equal speeds, the mass ratio of A and B is :-

Important Questions on Centre of Mass, Momentum and Collisions

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A body $A$ experiences perfectly elastic collision with a stationary body $B$ . If after the collision the bodies fly apart in the opposite direction with equal speeds, the mass ratio of $A$ and $B$ is :-