For an oblique collision between two smooth spheres, which statements are correct?
Select all that apply

Question

For an oblique collision between two smooth spheres, which statements are correct?

G1 Physics · Accepted Answer

For smooth spheres, there is no tangential impulsive force at the point of contact. Therefore the collision impulse acts along the common normal, so A is correct. Because there is no tangential impulse, each sphere's tangential velocity component remains unchanged, so B is correct. Coefficient of restitution relates the relative separation and approach speeds along the common normal only, so C is correct. Kinetic energy is conserved only for a perfectly elastic collision, e = 1. Therefore D is…