Recent content by Zorric

thanks for the help! Thanks for the help guys, not sure what the confusion was between you two, I have learned about kinetic energy and whatnot, just trying to brush up on these problems. Also, that was the equation I was trying to remember @panphobia and when you mentioned it, I automatically...

Not exactly sure, I am sure you can derive something using the initial velocity, just not sure.

Indeed I did mean mass. :) You are right about the two objects dropping at the same time, if it is dropped than the initial speed will be 0 m/s.

gravitational potential near the surface of Earth according to https://www.physicsforums.com/showpost.php?p=3820479&postcount=7 This seems like the most logical equation to use granted the only known data is the height, gravitational force, and mass.

Homework Statement A .5kg apple is dropped off the top of a 15m tall building. Assuming there is no air resistance, what will the apple's speed immediately before it strikes ground be?Homework Equations U=m g hThe Attempt at a Solution (.5kg)(9.8m/s^2)(15m) = 73.5 m/s? Just doesn't seem that...