Home
Class 11
PHYSICS
Two solid balls of rubber A and B whose ...

Two solid balls of rubber A and B whose masses are 200gm and 400gm respectively, are moving in mutually opposite directions. If the velocity A is 0.3 m/s and both the balls come to rest after collision, then the velocity of ball B is :

Text Solution

Verified by Experts

Initial linear momentum of system `= m _(A) v _(A) = m _(B) v _(B)`
`= 0.2 xx 0.3 +0.4 xx v_(B)`
Finally both balls come to rest
`therefore `Final linear momentum = 0
By the law of conservation of linear momentum `0.2 xx 0.3 +0.4 xx v _(B) =0`
`therefore u _(B)= (0.2xx 0.3)/( 0.4) =- 0.15 m//s`
Promotional Banner

Similar Questions

Explore conceptually related problems

The solid rubber balls A and B having masses 200 and 400 gm respectively are moving in opposite directions with velocity of A equal to 0.3 m / s . After collision the two balls come to rest, then the velocity of B is

Two bodies A and B of masses 5.00 kg and 10.0 kg respectively moving in opposite directions with velocities 4.00 m/s and 0.50 m/s respectively make head-on collision in free space. The force of their mutual interaction varies according to the given graph. Select incorrect statement.

Two identical balls A and B having velocity of 0.5 m//s and -0.3 m//s respectively collide elastically in one dimension. The velocities of B and A after the collision respectively will be

Two balls of masses m and 2m moving in opposite directions collide head on elastically with velocities v and 2v . Find their velocities after collision.

Two balls of masses m and 2m moving in opposite directions collide head on elastically with velocities v and 2v . Find their velocities after collision.

Two identiacal balls A and B having velocities of 0.5 m/s and 0.3" m"//"s" respectively collide elastically in one dimension. The velocities of B and A after the collision respectively will be

Two identical balls moving in opposite directions with speed 20 m/s and 25 m/s undergo head on perfectly inelastic collision. The speed of combined mass after collision is

Two balls of masses m each are moving at right angle to each other with velocities 6 m/s and 8 m/s respectively. If collision between them is perfectly inelastic, the velocity of combined mass is

A ball of mass 0.2 kg moves with a velocity of 20m//sec and it stops in 0.1 sec , then the force on the ball is

A ball of mass 0.2 kg moves with a velocity of 20m//sec and it stops in 0.1 sec , then the force on the ball is