Two particles collide, one of which was initially moving andthe other initially

Question

Two particles collide, one of which was initially moving andthe other initially at rest. a. Is it possible for both particlesto be at rest after the collision? Give an example in which thishappens, or explain why it can't happen. b. Is it possible for oneparticle to be at rest after the collision? Give an example inwhich this happens, or explain why it can't happen. Two particles collide, one of which was initially moving andthe other initially at rest. a. Is it possible for both particlesto be at rest after the collision? Give an example in which thishappens, or explain why it can't happen. b. Is it possible for oneparticle to be at rest after the collision? Give an example inwhich this happens, or explain why it can't happen.

Explanation / Answer

It is impossible for both particles to be at rest after thecollision . Since from alw of conservation of momentum , total moemtumbefore collision = total momntum after collision Total momentum before collision is not zero.So, total momentumafter collision doesnot equal to zero. That why it is impossible for both particles to be at restafter collision. (b). yes ,it is possible. if the mass of the two particles are equal then it ispossible

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