Force on B+0.0 N
Force on A−0.0 N
Velocity A0.00 m/s
Velocity B0.00 m/s
Arrows visible; real force at contact
Approach
Arrows preview direction; force value is zero before contact gap 0 px on B on A direction preview before contact: x = x0 + vt; elasticity changes only the result after contact

Before collision

A moves right, B moves left. Either speed can be zero.

uA = 0.00, uB = 0.00

Self-check

Approach is constant-speed. After contact, vB − vA ≥ 0. If it is 0, the carts stick together.

PASS: vB − vA = 0.00

After collision

One impact only. Elasticity controls bounce: 0 sticks, 1 rebounds most.

vA = 0.00, vB = 0.00