11the force on M is F towards right whereas on the block 2M is2F towards left .net force=3F .exten.=3F/k
Akash Anand Can you be anymore wrong ???
Answer this question with logical explanation please.
-
UP 0 DOWN 0 0 4
4 Answers
1133Force acting of block 2M is 2F towards left, and on M is F towards right. Thus net accln of system is F3M towards left.
Consider the COM of the system as the frame of reference.
Applying appropriate pseudo forces on each block,
F2M = 2F - 2M.F3M = 4F3 towards left.
FM = F + M.F3M = 4F3 towards rights.
Let the extensions caused by F2M and FM be x1 and x2.
Conserving energy,
F2Mx1 + FMx2 = 12k(x1 + x2)2 [At max extension, kinetic energy = 0]
=> (x1 + x2) = 8F3k
Himanshu Giria just 1 doubt ...
plz tel how are we applying energy conservation in the 2nd last equn.....
Upvote·0· Reply ·2014-02-13 08:17:29- Sourish Ghosh Work done by both the forces = potential energy stored in the spring.
- Akash Anand Excellent work Sourish..keep it up :)
111161Hint for this question is another question, you might enjoy :)
