Two carts with masses of 4.66 kg and 3.00 kg move toward each other on a frictionless track with speeds of 4.77 m/s and 3.33 m/s respectively. The carts stick together after colliding head-on. Find the final speed.

Answer 1

Conservation of momentum:

(M1+M2)V = M1*V1-M2*V2

M1 = 4.66 kg
M2 = 3.00 kg
V1 = 4.77 m/s.
V2 = 3.33 m/s.
Solve for V.