- #1

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Please bare with my lack of understanding for this subject !

## Homework Statement

Vy = 14m/s

Vx = 9m/s

a = -9.81m/s

Question is basically asking that, with the information given above, will the football kicked (starting at 0), clear a bar that's 3m tall and is 20m away.

## Homework Equations

Teacher expects us to use the quadratic formula and use the formula (1/2a x Delta t^2 + V1 Delta t - Delta d) to replace Ax^2 + Bx + C.

## The Attempt at a Solution

I tried to solve for Delta t first with this:

Delta t = 1/2 x (-9.81m/s) + 14m/s (Vy) - 3 (The Bar's height).

a = -4.905m/s

b = 14m/s

c = -3m/s

The two possible answers I got after using the quadratic formula was: 3.0544 and 1.964.

I don't know what to do from here or even if I did the first part right.

Please help !