Collisions between atomic and subatomic particles are usually perfectly elastic. In one such collision, a proton traveling to the right at 278 collides elastically with a stationary alpha particle (a helium nucleus, having mass 6.65×10?27 ).
1. Find the magnitude of the velocity of the proton after the collision
2. Find the magnitude of the velocity of the alpha particle after the collision.
2b. Find the direction of the velocity of the alpha particle after the collision. A. to the left or B. to the Right
3. How much kinetic energy does the proton lose during the collision?