Question

- v = 15
- (2)
from (1) and (2) .v, = 13ms'
17. A particle of mass 3m moving with velocity v
E collides elastically head on with a particle of
mass 2m at rest. After collision their veloci-
ties are respectively
mu, + mu, = m, v, +m, v
3mv = 2my, + 2mv, - (1)
- v = v
--- (2)
from (1) and (2)​

Answer 1

Answer:

why you put comas there ? I can't understand.