Ashwin Muralidharan IIT Madras
Last Activity: 13 Years ago
Hi Arnab,
As the intial momentum of the system is zero (as they are relased from rest), and no external force acts on the system, the net momentum of the system should be 0 at any instant in time.
Let us say v1 and v2 are the speeds of the mass 1Kg and 2Kg respectively,
So 1*v1 = 2*v2
or v1/v2 = 2/1
And ratio of their momentum is 1.
Ratio of KE = 1*v1^2/2*v2^2 = 2.
Hope this helps.
Regards,
Ashwin (IIT Madras).