Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 9 Answered

2 bodies of masses 'm' and '3m', moving with velocities 3v and v respectively along same direction, collide with each other. After collision they stick together and move with a velocity V in the same direction. Then:
A) V=v
B) V=3/2v
C)V=2v
D) V=4/3v
 
Asked by adityaahuja099 | 12 Oct, 2017, 11:39: PM
answered-by-expert Expert Answer
Initial momentum of both bodies m×3v + 3m×v = 6×m×v
 
after collision combined mass is 4×m
 
By conservation of momentum, momentum after collision is 6×m×v
 
so velocity after collision is fraction numerator 6 cross times m cross times v over denominator 4 space cross times space m end fraction space equals space 3 over 2 v
Answered by | 13 Oct, 2017, 12:04: PM
CBSE 9 - Physics
Asked by charvi | 26 Nov, 2021, 06:27: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by anuragyvidya | 28 Sep, 2021, 12:47: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by bansalshally55 | 15 Aug, 2020, 05:02: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by varshalifarrad | 28 Jul, 2020, 08:31: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by vedbidi10jhs.tl | 25 Jun, 2020, 05:37: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by vedbidi10jhs.tl | 20 Jun, 2020, 08:55: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×