Problem 2-2D collisions. Two particles of equal mass collide. Before the collision, particle A has initial velocity VA, while particle B is at rest. After the collision, the angle of deflection of particle A is 04-30°. Assume, at first (in parts a and b), that the collision is elastic. (a) Find the angle of deflection of particle B. (b) Assume that the velocity of particle A before the collision is VA= 100 m/s and that the kinetic energy of particle B after the collision is Ks' = 20 J. Find the particles' mass. (c) If, instead, the collision is fully inelastic, what is the angle of deflection and the velocity of the combined A+B particle after the collision?

Problem 2-2D collisions. Two particles of equal mass collide. Before the collision, particle A has initial velocity VA, while particle B is at rest. After the collision, the angle of deflection of particle A is 04-30°. Assume, at first (in parts a and b), that the collision is elastic. (a) Find the angle of deflection of particle B. (b) Assume that the velocity of particle A before the collision is VA= 100 m/s and that the kinetic energy of particle B after the collision is Ks' = 20 J. Find the particles' mass. (c) If, instead, the collision is fully inelastic, what is the angle of deflection and the velocity of the combined A+B particle after the collision?