Elastic Collision Calculator

Calculate final velocities in a perfectly elastic collision

Mass (kg):

Initial Velocity (m/s):

Mass (kg):

Initial Velocity (m/s):

v1' = ((m1-m2)*v1 + 2*m2*v2) / (m1+m2)

v2' = ((m2-m1)*v2 + 2*m1*v1) / (m1+m2)

In elastic collisions, both momentum AND kinetic energy are conserved.