1. Distance vs Displacement
5 meters east in 2 seconds
3 meters south in 1 second
The total distance d traveled is
The total displacement d is
Speed = d / t = v
Velocity= d / t = v

2. Vector mathematics is different than scalar mathematics
Scalars are just numbers and can be added with regular math. They add up to a sum.
Vectors have direction and must be drawn to scale and connected head-to-tail. They add up to a resultant.
HEAD
Tail
Start
Finish

3. 2 miles
3 miles
4 miles
Road runner travels 5 miles before Marvin sends him back. Road runner takes a shortcut back that saves him a mile.
If the whole round trip took 1 hour, what is roadrunner’s
a) speed? b) displacement ?

4. Practice;
1. A runner runs 500 meters due east and 1000 meters due south. Find the distance and displacement
2. A plane travels 3000 miles from California to New York in 5 hours, stays in NY 1 hour to refuel, then flies back again.
Find the average speed and average velocity for the round trip flight .

5. When direction changes,
average velocity = average speed
Ex; Wilbert drives 2.0 km east in 15 minutes to make a delivery. He then goes 3.0 km west in 20 minutes to make a delivery to the other side of town.
Find Wilberts’
a) average speed b) average velocity
During his 35 minutes of travel