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## Homework Statement

A golf ball is hit off a tee at the edge of a cliff. Its x and y coordinates as functions of time are given by the following expressions.

x = (16.0 m/s)t

y = (3.30 m/s)t - (4.90 m/s2)t^2

Write a vector expression for the ball's position as a function of time, using the unit vectors i and j. (Use t, i and j as necessary.)

## Homework Equations

## The Attempt at a Solution

The best i am coming up with is

(19.30 m/s)t i - (4.90 m/s^2)t^2 j

I know I am missing something about the conversion but i don't know what, and am really confused about vectors

EDIT: I realized what i did. I get really confused with the vectors. i didnt realize the two x was going to compose the i component and the y was going to compose the j component. Thank for the help, but TBH I am glad a figured it out on my own...im sure ill remmeber now! Thanks

THe answer i got was

(16.0t) i + [(3.30t)-(4.9t^2)] j

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