Name_________________________________
Mr. Menzella
Physics
Date____________________
Directions: Complete the questions assigned to your group on pages 24 – 26 of your textbook as well as the
speed problems below.
Group
Understanding
Vocaculary
Reviewing Concepts
A
1–6
B
7 – 11
C
12 -13
7, 9
15
21, 22, 23
Speed Problems
1-3
4-6
7 - 10
Equation
v = d/t
d=vxt
t = d/v
Gives you . . .
Speed
Distance
Time
If you know . . .
Distance and time
Speed and time
Distance and speed
Directions: Use the equations above to answer the following questions. Round to
the nearest tenth.
1. A high school athlete runs 100 m in 12.20 s. What is her average speed?
Given
d = 100 m
t = 12.2 s
Formula
Set-up
Solution
v = d/t
2. What is the speed of a cheetah that travels 112.0 meters in 4.0 seconds?
Given
Formula
Set-up
Solution
3. What is the average speed of a car that traveled 36000.0 miles in 300 seconds?
Given
Formula
Set-up
Solution
4. A rocket launched into outer space travels 240,000,000 m during the first 7200 seconds after the
launching. What is the average speed of the rocket?
Given
Formula
Set-up
Solution
5. Elmer Fudd shoots a bullet from his rifle with a speed of 720.0 m/s. What time is required to strike a
target 324.0 m away?
Given
Formula
Set-up
Solution
6. On a baseball diamond, the distance from home plate to the pitcher’s mound is 18.5 m. If a pitcher is
capable of throwing a ball at 38.5 m/s, how much time does it take a thrown ball to reach home plate?
Given
Formula
Set-up
Solution
7. A bullet travels at 850 m/s. How long will it take a bullet to go 1000 m?
Given
Formula
Set-up
Solution
8. Every summer Mr. Magoo drives to Michigan. It is 3900 m to get there. If he averages 100 m/s, how
much time will he spend driving?
Given
Formula
Set-up
Solution
9. If you drive at 100 m/s for 7200 seconds, how far will you go?
Given
Formula
Set-up
Solution