A pool ball moving 1.33 m/s strikes an identical ball at rest. Afterward, the first ball moves 0.750 m/s at a 33.30 angle. What is the velocity of the other ball?

Explanation:

We need to apply the conservation law of linear momentum to two dimensions:

Let = momentum of the 1st ball

= momentum of the 2nd ball

In the x-axis, the conservation law can be written as

or

Since we are dealing with identical balls, all the m terms cancel out so we are left with

Putting in the numbers, we get

In the y-axis, there is no initial y-component of the momentum before the collision so we can write

or

Taking the ratio of the sine equation to the cosine equation, we get

or

Solving now for ,

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.

friction

explanation:

they us to move forward and backwards