Recent content by lone21

Homework Statement A Pendulum weighs .5kg and has a string length of 70cm swings from a horizontal position downwards to hit a block that weighs 2.5 kg and is on a frictionless plain. Calculate the speed of both the ball and the block after the elastic collision. Homework Equations...

Thats not a typo, the reason for it being negative is because that block will be going in the opposite direction and therefore it would be subtracted. I'm not sure if that's correct ,but in the examples given to me by my professor that's what seemed correct. I know substitution will work, but...

Homework Statement A 2.00 kg block is at rest at the top of a frictionless inclined plane. The block is...