- #1
MJay82
- 42
- 0
Homework Statement
The position of a particle is given by the expression x=4.00 cos (3.00[tex]\pi[/tex]t+[tex]\pi[/tex]) where x is in meters and t is in seconds. Determine the frequency, period of the motion, amplitude of the motion, the phase constant, and the position of the particle at t=0.250 s. **I don't know why this looks like those pi's seem like superscripts - they're not.
Homework Equations
Not sure - probably what my problem is.
The Attempt at a Solution
Alright, I can get the frequency, period, amplitude and phase constant. But what I'm confused about is why I don't just plug .25 s into t in the equation and solve for x to get the position of the particle at t=.25 s, and how to solve the problem correctly. The answer in the book is 2.83 m.