a nice logical one ...

two stones... bigger one of mass' M' n smaller one of mass 'm' is dropped from a height 'h' ...
afetr coming in contact with d ground d stones bounce back..
the cofficeint of restitution between d two stones 'E' is equal to 1..
now d question is weathr both d stones will bounce back.. n if yes... den to what height will each of dem bounce back! ?
ol d best d fig is given alongside fr ur help...

m nt sure if dis ques is in ny1 of d text books.. sum1 asked me randomly.. so i wanted to know d concept behind it..