A particle of mass m moving with velocity v strikes a stationary particle of mass 2 m and sticks to it. The speed of the system will be:

Question

A particle of mass m moving with velocity v strikes a stationary particle of mass 2 m and sticks to it. The speed of the system will be: (A)  3 upsilon  (B)  upsilon /3  (C)  2 upsilon  (D)  upsilon /2

Tardigrade Admin · Accepted Answer

Applying law of conservation of momentum m upsilon =(m+2m) upsilon 1 so, upsilon 1=( upsilon /3)

Q. A particle of mass m moving with velocity v strikes a stationary particle of mass 2 m and sticks to it. The speed of the system will be:

$3 υ$

$υ /3$

$2 υ$

$υ /2$

Applying law of conservation of momentum $m υ = (m + 2 m) υ_{1}$ so, $υ_{1} = \frac{υ}{3}$