Momentum and CollisionHard
Question
Shown situation find the maximum elongation in the spring. Neglect friction everywhere. Initially, the blocks are at rest and spring is up stretched
Options
A.
B.
C.
D.
Solution
By using reduced mass concept system van be reduced to 
Where μ =
= 2 and F1 = Force on either block w.r.t centre of mass of the system
=
+ (3m) acm = 
+ (3m) 
= 
F
Now from work energy theorem,
xm = 
Kxm2 ⇒ xm = 
Where μ =
= 2 and F1 = Force on either block w.r.t centre of mass of the system =
+ (3m) acm = + (3m) = FNow from work energy theorem,
xm = Kxm2 ⇒ xm = Create a free account to view solution
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