Recent content by teddy75

That was actually my original approach, but how did you just drop the t2 in the final solution?

Yeah, I've been spending the past couple hours doing that... I keep getting time in there and then, since it's not given or required, I have to find a way to get rid of it. I tried taking the derivative after doing that also, and that just seems to mess things up even more. I also tried taking...

With the person standing on top of the rounded part of the hemisphere and the flat part on the ground? Like something along the lines of this attempt at a diagram? _ `\ ----\

Yes, but does that guarantee that the ball will not hit anywhere on the sphere on the way down?

Homework Statement A person standing at the top of a hemispherical rock of radius R kicks a ball (initially at rest) to give it an initial horizontal velocity v0 What is the minimum initial speed for the ball not to hit the rock on its way down? Homework Equations x=v_0 t y=R-\frac{1}{2}g...