X and Y coordinates (in m) to acceleration.

[rsmseys]

Homework Statement

X and Y coordinates of a point are x = 2.2cos(1.2t) and y = 2.2sin(1.2t) (both in m) where t is the time. What is the magnitude of acceleration (in m/s/s).

Homework Equations

http://en.wikipedia.org/wiki/Equations_of_motion#Equations_of_uniformly_accelerated_linear_motion

The Attempt at a Solution

I don't know where to begin with this question. Any suggestions would be helpful.

 

[N-Gin]

The equations you mentioned are actually irrelevant and they don't help at all. What you really need is to use the basic definition of acceleration. First you find acceleration in x and y direction and then use Pythagorean theorem to find the magnitude (acceleration is a vector!).

 

[rsmseys]

Thank you, I wasn't sure so I posted the equations I have been using for all of my other problems.

I was able to find the correct answer using this help. Thanks a lot!