1. Uniform Motion
Word problems using
rate, time and distance.

2. Uniform Motion
 An object that moves at a constant
speed or rate is said to be in
“Uniform Motion.”

3. Uniform Motion
 Uniform motion problems use the
distance formula.
R x T = D
 Rate (how fast)
 Time (how long)
 Distance (how far)

4. Uniform Motion
There are 3 basic types of problems:
1) Objects moving in the same direction
2) Objects moving in opposite directions
3) Objects that travel a “round-trip”
situation

5. Uniform Motion
 Same Car 1
direction Car 2
 Opposite
directions
 Round-trip

6. Uniform Motion
 A car and a truck leave a tollbooth at the same
time and travel to a rest area. The car travels
15 mi/h faster than the truck and makes the trip
in 3 hours. The truck makes the trip in 4 hours.
What is the rate of the truck?
R x T = D
CAR
TRUCK

7. Uniform Motion
 Two cars travel in opposite directions from a
tollbooth at the same time. The average rate of
speed of the eastbound driver is 10 mi/h faster
than the westbound drive. If they are 200 miles
apart after 2 hours, what is the average rate of
speed of each car?
R x T = D
CAR -E
CAR - W

8. Uniform Motion
 A car and a truck travel in opposite directions.
The car, traveling at 60 mi/h, takes 1 hour less
to go the same distance as the truck, which
travels at 50 mi/h/ How long does the truck
take to go the distance?
R x T = D
CAR
TRUCK

9. Uniform Motion
 A jet leaves the base at 9:00 AM and flies at 500
mi/h. At 10:30 AM, a second jet takes off on the
same heading and flies at 650 mi/h. How long will it
take the second jet to overtake the first?
R x T = D
Jet 1
Jet 2

10.  Assignment:
 Worksheet # 1,3,4 and show the RTD
chart for each.