Proton A moving at 500 m/sec collides elastically with proton B that is intitally at rest. After the collision, the two protons move along perpendicular paths with proton A moving at 60 degrees from its original direction

(4 points) Make a detail sketch of the problem

a) (8 points) After the collision, what is the speed of proton B?

up to 4 points only without all the units

b) (8 points) After the collision, what is the speed of proton A?

up to 4 points only without all the units