Recent content by moncheri

i don't understand why youre confused - i kept the initial velocities separate .. you have to add the KEi of a with the KEi of b .. because before the collision the two objects a and b are seperate, correct? If they're together that's a different story - maybe I don't understand? Well, I...

i think that sin = opposite / hypotenuse .. o/a = tan

To find the change in KE you use the formula KE = .5mv^2 so the KEi (initial) is .5*m,a*vi,a^2 + .5*m,b*vf,b^2 you do KE,f the same way but with the final velocities then you do KEf - KEi does this answer your question?