Homework Statement
A box sits on an inclined plane. Given its mass and the angle of the incline, what is the magnitude of the normal force?
Homework Equations
I don't know- my understanding is N=mgcos(theta), but my physics textbook says otherwise...
The Attempt at a Solution
My attempt at...
The problem I've ben having is really figuring out the initial speed and angle - once that's done, I think I can do it.
Does anyone have any ideas on how to solve those?
Homework Statement
A man jumps off a swingset at the peak of his swing (45 degrees from swing's base, which is perpendicular to the ground). The length of the swing chain is 2.13 meters, the distance from the pivot (where the chain attaches to the base) to the ground is 2.53 meters. What is...