A 6.0 kg metal ball moving at 4.0 m/s hits a 6.0 kg ball of putty at rest and sticks to it. The two go on at 2.0 m/s.

(a) What is the kinetic energy of the metal ball before it hits?

(b) What is the kinetic energy of the metal ball after it hits?

(c) What is the kinetic energy of the putty ball after being hit?

(d) How much energy does the metal ball lose in the collision?

(e) How much kinetic energy does the putty ball gain in the collision?

(f) What happened to the rest of the energy?

Momentum is the product of mass and velocity of the body. We must note that momentum before collision is equal to momentum after collision.

1) Kinetic energy before collision = 1/2mv^2 = 0.5 * 6 * 4 = 12 J

2) kinetic energy after collision = 0.5 * 6 * 2= 6 J

3) Kinetic energy of putty ball = 0.5 * 6 * 2= 6 J

4) Energy lost by the metal ball = 12 J - 6 J = 6 J

5) Energy gained by the putty ball = 6 J - 0J = 6 J

6) The rest of the energy was converted to heat after the collision.

Learn more about kinetic energy: https://brainly.com/question/999862