Two 75.0 kg hockey players skating at 5.60 m/s collide and stick together. If the angle between their initial directions was 115°, what is their velocity after the collision? (Let the motion of player 1 be in the positive x-direction and the motion of player 2 be at an angle of 115° measured counterclockwise from the positive x-axis.)

Answer 1

Your teacher made this very simple. Notice that the momentum of each is the same, which means the final momentum will be along the angle bisector of the oriainal angle separation.

So each is 115/2 off that final path.

final momentum=2*75*5.60*cos(115/5)=2*75*
V

solve for V