logo

Ask Questions, Get Answers

 
X
 Search
Want to ask us a question? Click here
Browse Questions
Ad
Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class11  >>  Laws of Motion
0 votes

The system as shown is released from rest. Neglecting friction and masses of pulleys, spring & rope the spring gets elongated if

Can you answer this question?
 
 

1 Answer

0 votes
For the mass M
Net force on the system $Mg-mg+mg$
$=Mg$
Total mass being pulled $=M+2m$
Therefore $ a=\large\frac{Mg}{M+2m}$
We have $a < g$
There should be an upward force on M. so that its acceleration becomes less than g. Hence for any value of M spring is elongated
answered Jul 8, 2013 by meena.p
 

Related questions

Ask Question
student study plans
x
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...