Speed, Velocity, and Force Problems
Show your work!
1. Put a square box around each item that represents a velocity. Circle each item that represents a speed.
a.
4 m/s
b. 5.5 km/hr
f. 19 miles East g. 39.4° East
c. 24.4 m North
h. 17 miles/hr
d. 12 m/s2 South
i. 79 feet/sec
e. 31 days/month
j. 28 m/s West
Speed Formula
Speed = Distance (m)
Time (s)
or
s = d/t
or
s = m/s
2. What is the speed of a rocket that travels 9000 meters in 12 seconds?
3. What is the speed of a jet plane that travels 528 meters in 4 seconds?
4. What is the speed of a walking person in m/min if the person travels 1000 m in 20 minutes?
5. What is the average speed of a cheetah that sprints 100 m in 4 s?
6. A runner makes one lap around a 200 m track in a time of 25.0 s. What was the runner's average speed?
7. A motorist travels 406 km during a 7.0 hr period. What was the average speed in km/hr?
Velocity Formula
Velocity = Distance (m) or V = D (m)
time (s)
t (s)
*Don’t forget the
direction!
Time (s)
t (s)
8. You walk north for 3 hours and travel 6 km. What is your velocity as you walk?
9. A car travels 40 km west in 2 hours. What is the velocity of the car as it traveled west?
10. What is the velocity of a car that traveled a total of 75 kilometers north in 3 hours?
11. What is the velocity of a plane that traveled 3,000 miles west from New York to California in 5.0
hours?
12. Jarrett took 45 minutes to cycle southeast to his uncle’s house, a total of 4 km. What was his velocity in
km/min?
13. Calculate the velocity of a dog running northwest through a field if he is covering 24 meters in 12 seconds.
Force Formula
Force = Mass (kg) x Acceleration (m/s2)
or
F = ma
or
F = kg/m/s2 or N
14. How much force is needed to accelerate a truck with a mass of 2,000 kg, at a rate of 4 m/s²?
15. What force is needed to accelerate a 1,000 kg car at a rate of 25 m/s/s?
16. A boy pushes on a box of mass 10 kg and it moves at an acceleration of 2m/s2. With what force does the boy
push on the box?
17. Sally has a car that accelerates at 5 m/s2. If the car has a mass of 1000 kg, how much force does the car
produce?
18. A 10 kg bowling ball would require what force to accelerate down an alleyway at a rate of 3 m/s2?