Home
Class 11
PHYSICS
A heavy ball moving with speed v collide...

A heavy ball moving with speed `v` collides with a tiny ball. The collision is elastic, then immediately after the impact, the second ball will move with a speed approximately equal to

A

(a) `v`

B

(b) `2v`

C

(c) `v/2`

D

(d) `v/3`

Text Solution

Verified by Experts

The correct Answer is:
B

`m_1 gt gt m_2`
`v_2^()'=((m_2-m_1)/(m_1+m_2))v_1+((2m_1)/(m_1+m_2))v_2`
Substituting `m_2=0` and `v_1=0` we get,
`v_2=2v`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CENTRE OF MASS, LINEAR MOMENTUM AND COLLISION

    DC PANDEY|Exercise Level 1 Subjective|32 Videos

  • CENTRE OF MASS, LINEAR MOMENTUM AND COLLISION

    DC PANDEY|Exercise Level 1 Subjective Questions|1 Videos

  • CENTRE OF MASS, LINEAR MOMENTUM AND COLLISION

    DC PANDEY|Exercise Level 1 Assertion and Reason|15 Videos

  • CENTRE OF MASS, IMPULSE AND MOMENTUM

    DC PANDEY|Exercise Comprehension type questions|15 Videos

  • CIRCULAR MOTION

    DC PANDEY|Exercise Medical entrances s gallery|19 Videos

Similar Questions

Explore conceptually related problems

A massive ball moving with speed v collides with a tiny ball by negligible mass. The collision is elastic. Find the speed with which the second tiny ball will move.

A heavy steel ball of mass greater than 1 kg moving with a speed of 2 collides head on with a stationary ping-pong ball of mass less than 0.1 gm. The collision is elastic. After the collision the ping-pong ball moves approximately with speed

Knowledge Check

  • A massive ball moving with speed v collieds with a tiny ball which is intially at rest having a mass very much smaller than the mass of the first ball. The collision is elastic, then immediately after the impact, the second ball will move with a speed approximately equal to :-

    A
    v
    B
    2v
    C
    v/2
    D
    `oo`

  • A billiard ball moving with a speed of 5 m/s collides with an identical ball originally at rest. If the first ball stops after collision, then the second ball will move forward with a speed of

    A
    `10ms^(-1)`
    B
    `5ms^(-1)`
    C
    `2.5 ms^(-1)`
    D
    `1.0ms^(-1)`

  • A billiard ball moving with a speed of 5 m//s collides with an identical ball, originally at rest. If the first ball stop dead after collision, then the second ball will move forward with a speed of:

    A
    `10 m//s`
    B
    `5 m//s`
    C
    `2.5 m//s`
    D
    `1 m//s`

    • Similar Questions

    Explore conceptually related problems

    A ball is moving with speed 20 ms^(-2) collides with a smooth surface as shown in figure. The magnitude of change in velocity of the ball will be

    Two billiard balls undergo a head-on collision. Ball 1 is twice as heavy as ball 2. Initially, ball 1 moves with a speed v towards ball 2 which is at rest. Immediately after the collision, ball 1 travels at a speed of v/3 in the same direction. What type of collision has occured ?

    Two billiard balls undergo a head-on collision. Ball 1 is twice as heavy as ball 2. Initially, ball 1 moves with a speed v towards ball 2 which is at rest. Immediately after the collision, ball 1 travels at a speed of v/3 in the same direction. What type of collision has occured ?

    Two billiard balls undergo a head-on collision. Ball 1 is twice as heavy as ball 2. Initially, ball 1 moves with a speed v towards ball 2 which is at rest. Immediately after the collision, ball 1 travels at a speed of v//3 in the same direction. What type of collision has occured?

    A heavy steel ball of mass greater than 1 kg moving with a speed of 2 m sec^(-1) collides head on with a stationary ping-pong ball of mass less than 0.1 gm. The collision is elastic. After the collision the ping-pong ball moes approximately with speed

    Home
    Profile