Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Ram Prasath posted an Question
September 17, 2021 • 03:50 am
![]()
30 points
30 points
- IIT JAM
- Physics (PH)
15. mech. please someone explain this problem briefly?
1 Answer(s)
Answer Now
- 0 Likes
- 1 Comments
- 0 Shares
Do You Want Better RANK in Your Exam?
Start Your Preparations with Eduncle’s FREE Study Material
- Updated Syllabus, Paper Pattern & Full Exam Details
- Sample Theory of Most Important Topic
- Model Test Paper with Detailed Solutions
- Last 5 Years Question Papers & Answers
Sign Up to Download FREE Study Material Worth Rs. 500/-
Isha lohan 1 Best Answer
To find velocity centre of mass, we first take x components of velocities of all masses and do the summation[as in formula given in fig below], as given in first line of your solution, the '2ucos60' is the x component of velocity of mass 2m. Similarly for mass 3m, the x component is 'ucos60'. Then take y components of all velocities and do the summation similarly as for x same as for y. As it is in the second step. In second step, it should be written, U(cm) j cap, the i cap written is mis printed. Then the final velocity is the combination of i cap and j cap terms of U(cm). The formula for velocity of centre of mass is given in attached figure.