- #1
XwakeriderX
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Homework Statement
The position r as a function of time of a 15.0 kg mass, moving
in the x-y plane, is given by r(t) = (6.00t^3 x + 1.20t^4 y) meters where x and y are unit vectors. At t = 5.00 s, find the magnitude and direction of the net force vector
which is causing this acceleration
Homework Equations
a=(Ax)x + (Ay)y +(Az)z
and each variable after the () has a hat on them
The Attempt at a Solution
I don't know how to start the problem : /