1. Aim: How do we use Newton’s equation of Motion to explain free fall?

2. Free Fall
On Earth, all objects accelerate downwards at -9.8 m/s2 regardless of mass.

3. Acceleration due to gravity on the moon
On the moon, all objects accelerate at -1.6 m/s2 downward.

4. Example 1- Body dropped from rest.
A basketball is dropped from a building that is 45 m tall.
Calculate the time it takes the basketball to hit ground.
Calculate the velocity with which the object strikes ground.

5. Problem 2
Curious George drops from a fourth-story window 15.0 m above the ground.
How long does it take George to hit the ground?
With what velocity does George strike the ground?

6. Problem 3
If I drop a watermelon from the top of one of the tower dorms at CSU, and it takes 3.34 seconds to hit the ground, calculate how tall the building is in meters.

7. Example 4-Projectile thrown downwards
A banana is thrown downwards with a velocity of 7 m/s. If the banana strikes the ground after 4s,
How tall is the building?
With what velocity does the banana hit the ground?

8. Free Fall Tabular Approach
Create a table showing the position and velocity of a skydiver after each second (for 5 seconds. (Neglect air resistance)