Three identical balls are connected by light inextensible strings with each other as shown and rest over a smooth horizontal table. At the moment t=0, ball B is imparted a velocity. Calculate the velocity of A when it collides with C.
33lol..
i cahanged answer thrice.. did calculation msitake..
Now by conservation of momentum when A and C collides... velcoity of B=v0/3
By conservation of energy
mv02/2=1/2m(v0/3)2+2mx2/2
x is speed of A and C
x= 2v0/3
where Vo/3 is velocity in upward direction... so right componetn=v0/√3
1if not clear how velocity v0/3
it is by conservation of momentum
finally when distance between A and C=0
then for the length to be L the velocities of all of them must be same
hence
mv0=3mv'
33tanx for giving the explanation... mere ko aaram ho gaya.. [4] [1]
