Recent content by daliberataaa!

ok i feel like the biggest idiot in the world...i got it. I blame sleep deprivation...haha.

Homework Statement given that sin theta = 3/5, 0 < theta < pi/2 find sin theta/2 Homework Equations http://www.intmath.com/Analytic-trigonometry/sinalphaon2.gif The Attempt at a Solution I appologize that I don't know how to use all the symbols on a keyboard (square roots, etc)...

What do I need to get to solve this? Do I need mass? Normal force? what? k well...i have searched the glossary of my book, searched the internet since 3 pm.

Is there a mathematical solution though?

Homework Statement A box slides down a 30.0 degree ramp with an acceleration of 1.20 m/s^2. Determine the coefficient of kinetic friction between the box and the ramp. Homework Equations μk=f sub k/Fn The Attempt at a Solution With the information I have, I have no samples in my...