How to Calculate Air Time and Initial Speed of a Golf Ball in Projectile Motion?

[deaninator]

1. Homework Statement
A golfer rips a tee shot from an elevated driving range tee-off such that the ball leaves horizontally. The ball lands exactly at the 66.8 meter marker, and was shot from the upper level (6.5 meters above the ground).

How long was the ball in the air?

And how fast did the ball leave the tee?


2. Homework Equations
X = VoxT


3. The Attempt at a Solution
My teacher did a terrible job touching base on projectile motion... where do i start?

 

[zgozvrm]

How long does it take an object to drop 6.5 meters from rest?

 

[deaninator]

How long does it take an object to drop 6.5 meters from rest?

I know that the question is asking that...but can you please elaborate?

 

[tiny-tim]

hi deaninator!

A golfer rips a tee shot from an elevated driving range tee-off such that the ball leaves horizontally …

use the standard constant acceleration equations for components of motion in the vertical (y) direction, with a = -g