The last time I looked at this projectile motion lab, I was confused. My different methods for measuring the launch speed of the ball were not even close to being consistent. So, I am bringing out the ...

This content can also be viewed on the site it originates from. Suppose you throw some object near the surface of the earth. If the only significant force on the object is the constant downward ...

Which long jumpers will leave the London Games with a medal and which with just a memory depends, of course, on the horizontal distance they cover. Paradoxically, however, vertical velocity (the speed ...