Suppose a clay model of a koala bear has a mass of 0.205 kg and slides on ice at a speed of 0.720 m/s. it runs into another clay model, which is initially motionless and has a mass of 0.320 kg. both being soft clay, they naturally stick together. what is their final velocity (in m/s)? (enter the magnitude.)

Final velocity, v = 0.28 m/s

Explanation:

Given that,

Mass of the model,

Speed of the model,

Mass of another model,

Initial speed of another model,

To find,

Final velocity

Solution,

Let V is the final velocity. As both being soft clay, they naturally stick together. It is a case of inelastic collision. Using the conservation of linear momentum to find it as :

V = 0.28 m/s

So, their final velocity is 0.28 m/s. Hence, this is the required solution.