Match the type of fitness with the correct example

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

In a system, when potential energy decreases, then entropy also decreases. true false

The material that keeps its new shape after it is stretched is called?