# Physics question, I'm having trouble with a X,Y plane and equations.?

The coordinates of an object moving in the xy plane vary with time according to the equations
x = −5.63 sin ωt and y = 4.00 − 5.63 cos ωt,
where ω is a constant, x and y are in meters, and t is in seconds.
Write expressions for the position vector, the velocity vector, and the acceleration vector of the object...
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The coordinates of an object moving in the xy plane vary with time according to the equations

x = −5.63 sin ωt and y = 4.00 − 5.63 cos ωt,

where ω is a constant, x and y are in meters, and t is in seconds.

Write expressions for the position vector, the velocity vector, and the acceleration vector of the object at any time t > 0. (Use the following as necessary: omega for ω and t.)

r= -5.63sin(ωt) + (4-5.63cos(ωt))

v= 1st derivative, -5.63ωcos(ωt)+5.63sinω(ωt)

a= 2nd 5.63ω^2sin(ωt)+5.63cosω^2(ωt)

What am I doing wrong here?

x = −5.63 sin ωt and y = 4.00 − 5.63 cos ωt,

where ω is a constant, x and y are in meters, and t is in seconds.

Write expressions for the position vector, the velocity vector, and the acceleration vector of the object at any time t > 0. (Use the following as necessary: omega for ω and t.)

r= -5.63sin(ωt) + (4-5.63cos(ωt))

v= 1st derivative, -5.63ωcos(ωt)+5.63sinω(ωt)

a= 2nd 5.63ω^2sin(ωt)+5.63cosω^2(ωt)

What am I doing wrong here?

Update:
5.63cosω^2(ωt) --> 5.63ω^2cos(ωt)

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