Recent content by tortilla

Thank you so so much

since at point X it is at rest all the energy is gravitational potential, right? So if I set mgR equal to .5*m*v^2 and get v = sqrt(2gR) is that correct for part 1?

Because it isn't uniform the work is not zero?

I'm really not sure. Should I be looking at the angular speed? just v/R?

Thanks so much for pointing that out! should I be using v=(2piR)/t? I don't know the time it was on the track

I think I have solved the first three, and only really need help on question four. For number one, I used Fc = (Mv^2)/R and just rearranged it for velocity so I ended up with v = sqrt(ac * R) For number 2 I used Ff = Fn*mu and got Mg*mu = Ff For number 3 I used w = Ff*d and got w = -Mg*mu*l...