posted by phethile dlamini .
a car of mass 1600kg,travelling at a speed of 30ms to the left,collides head-on with 0ms to the right,the two vehicles move together as a unit in a straight line after the collision.calculate the velocity of the two vehicles after collision.2.do the necessary calculation to show that the collision ws inelastic.
M1 Vi + 0 = (M1+M2)V
if (1/2)M1 Vi^2 > (1/2)(M1+M2)V^2
then energy was lost as heat in the nasty crash.