# A ball with a mass of #4 kg# moving at #3 m/s# hits a still ball with a mass of #26 kg#. If the first ball stops moving, how fast is the second ball moving? How much kinetic energy was lost as heat in the collision?

##### 2 Answers

#### Answer:

#### Explanation:

Ball of mass

Loss of kinetic energy

#### Answer:

The speed is

#### Explanation:

There is conservation of momentum

The mass

The velocity

The mass

The velocity

The velocity

Therefore,

The loss in kinetic energy is