A particle of mass m moving with horizontal speed 6 m / sec collides with a heavy particle of mass M moving in same direction with velocity 4 m / sec. If m

Question

A particle of mass m moving with horizontal speed 6 m / sec collides with a heavy particle of mass M moving in same direction with velocity 4 m / sec. If m < < M, then velocity of lighter particle after collision, if collision is elastic (A) 2 m/sec in original direction (B) 2 m/sec opposite to the original direction (C) 4 m/sec opposite to the original direction (D) 4 m/sec in original direction

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/b2d05e29bc7080207465cfbef0e709e6-.png" /> After collision e =1=(4- v /6-4) 4- v =2 V =2 m / s

Q. A particle of mass $m$ moving with horizontal speed $6 m / sec$ collides with a heavy particle of mass M moving in same direction with velocity $4 m / sec$ . If $m << M$ , then velocity of lighter particle after collision, if collision is elastic

2 m/sec in original direction

2 m/sec opposite to the original direction

4 m/sec opposite to the original direction

4 m/sec in original direction

After collision
$e = 1 = \frac{4 - v}{6 - 4}$
$4 - v = 2$
$V = 2 m / s$

Q. A particle of mass m moving with horizontal speed 6m/sec collides with a heavy particle of mass M moving in same direction with velocity 4m/sec. If m<<M, then velocity of lighter particle after collision, if collision is elastic