Recent content by smartblonde

oh--it's supposed to be 2g, right? well, that still gives me 15.3 which is not the answer I'm looking for. I've used this same equation (correctly) on other problems and I'm not sure why this one isn't coming out the same.

I have three questions that I'm going to roll into one. I'm going insane trying to figure these out. 1. Find the unit tangent vector T to the cycloid. Also find the speed at theta=0 and theta=Pi, if the wheel turns at dtheta/dt=1. that dtheta/dt is the speed, right? I'm a little...

Homework Statement A ball is thrown at 60deg with v(subzero) = 20 meters/sec to clear a wall that is 2 meters high. how far away is the wall? Homework Equations h=((v(subzero)*sin(theta))^2)/g The Attempt at a Solution I tried inserting my givens into the height equation and came...