Recent content by overpower

ok thanks for your time

this is the problem i just don't quite understand the Q,im not sure where the 60 and X is

Impact and collision -- having problems A smooth sphere A impinges obliquely with an identical smooth sphere B which is at rest. the direction of A before and after impact makes angles 60 and X , respectively, with the line of centres at impact. the coefficient of restitution is e. prove that...