Recent content by Mqqses

Thanks for your insight into this problem, I think I'll leave this alone for now.

So would I use an integral from 0 to 6.4s? ∫06.4 ∂PE/∂t + ∂KE/∂t where PE= mgh and KE= 1/2mv2?

I'm not sure how to approach post #2, but I think that would be some sort of ∂PE/∂t + ∂KE/∂t for total energy required to move the lift. The sin θ may be a wrong idea. Am I getting the gist that an integral might be used for this?

Homework Statement A ski-lift has a one-way length of 987 m and a vertical rise of 275 m. The chairs are spaced 21 m apart, and each chair can seat three people. The lift is operating at a steady speed of 14 km/hr. Neglecting friction and air drag and assuming the average mass of each loaded...

R=sqrt((R*g*.001)/(sin(2*45)) is the formula for range. Edit: the .001 is to convert the gravitational constant from m/s^2 to km/s^2.

The question he is referring to neither describes the Earth as "flat" nor "round" so it is hard to grasp these questions in the sense of the Physical world. I am also working on this homework problem, and I've gotten question b) right, but not a). I also have not a clue what question c) is...