Recent content by Brainiac11

Thank you so much. I follow all of your work and understand it!

A 2-kg ball is moving at 3 m/s toward the right. It elastically collides with a 4-kg ball that is initially at rest. Calculate the velocities of the balls after the collision. I know that kinetic energy is conserved in elastic conditions, but I don't know how to use that to calculate this. I...

Yes! I got it! Thank you all!

Speed?

<< Thread moved to the HH forums from the technical physics forums, so no HH Templatge is shown >>[/color] So I have this question that says, "Someone at a third floor window (12 m above ground) hurls a ball downward at 45 degrees at a speed of 25.0 m/s. How fast will it be traveling when it...