- #1

- 46

- 0

## Homework Statement

how long does it take a football, with an initial velocity of 30 m/s at 30 degrees up from the horizontal, to reach the top of its flight?

## Homework Equations

Δy= ½ (Vf + Vo) t

## The Attempt at a Solution

I know that Vf= 0 m/s here because when it reaches the highest point, it stops for a split second. I also know that the horizontal component is 30sin(30), which equals 15. I then plugged it into the equation above to get

15= ½ (0+30)t → 15= 15t → t= 1 second.

Is this process correct?