4. FINDING WHERE A BALL WILL LAND
▪ Movement forward is independent of
movement left and right
▪ You can calculate exactly where a ball
will land
5. A BULLET DROPPED AND A BULLET
FIRED (MYTH BUSTERS)
https://www.yout
ube.com/watch?v
=2tiOmp1BE8Y
6. YES I WILL MAKE YOU DO MATH
▪ Use the formula:
𝐷 =
1
2
𝐴𝑇2
where D is distance in meters A is
acceleration in m/s² and T is time
in seconds
▪ Acceleration due to gravity is
-9.8 m/s²
▪ I know you have calculators on
your phone
▪ A ball is dropped from 1 meter
off the ground. How long will it
take for the ball to hit the
ground?
7. SOLUTION
▪ Plug numbers into the formula
𝐷 =
1
2
𝐴𝑇2
1𝑚 =
1
2
− 9.8𝑇2
Solve for T
1 = 4.9𝑇2
Divide by 4.9
.2041= 𝑇2
Find square root of both sides
.4517 =T
▪ You can now multiply the time to
the ground by the velocity to find
the distance it will travel
8. THE METRIC SYSTEM
▪ Is used in science
▪ Uses a base ten system
▪ Easier to convert
▪ Uses measurements that make sense
▪ Based on unchanging values(mostly)
EX: A meter is the distance light travels
in an fraction of a second
▪ Measurements contain a base unit. Ex:
meter and a power of ten Ex: kilo
▪ Therefore an Kilometer is 1000 meters
▪ Used by intire world except The United
States , Liberia, and Myanmar (Burma).
Problems with Imperial units
• Makes no sense (Why is an foot 12 inches?)
• Way harder to convert (5280 feet per mile vs. 1000 meters in
kilometer)
• Defined by metric system (EX. A foot is defined as 0.3048 of a
meter)
• Used by the rest of the world
11. DRIVERS ED
Class
▪ Learned lots of stuff
▪ Need it to get license
▪ Lowers insurance rates
▪ Makes you a better driver
Driving
▪ Terrifying
▪ I drove about 80 hours
▪ Didn't die yet
