Recent content by hstone

The problem just states that 'a mass oscillates.' It's pretty vague. I can see now why k=mg/x wouldn't work, since k is constant and shouldn't change with x. Thanks!

When the spring force is the only force acting on the mass doesn't k = mg/x apply, since ΣF=kx=ma and the only acceleration is due to gravity? Should I be using ω=√(k/m), instead? There are so many relations, I'm having difficulty keeping them all straight. I think I probably need to derive...

Homework Statement A 1.15-kg mass oscillates according to the equation x = .650cos(8.40t) where x is in meters and t in seconds. Determine a)the amplitude, b)the frequency, c) the total energy of the system, and d) the kinetic and potential energy when x = 0.360m. Homework Equations x...