Distance and Displacement
Speed and Velocity
Acceleration
Graphs
BONUS
100
#1) A Boy Scout paced 200 meters west and then 150 meters south. What was the scout's total distance?
350 m
100
Why is velocity a VECTOR quantity?
It includes a direction
100
#6) Peach began her kart race from rest and accelerated at 4.6 m/s2. How far had Peach traveled after accelerating for 3.5 seconds?
28.175 m
100
#3) Draw a velocity vs. time graph that shows an object moving with a constant acceleration.
A graph that shows a line traveling at the same velocity per unit of time
100
What is the unit for acceleration?
m/s2
200
#2) A Boy Scout paced 200 meters west and then 150 meters south. What was the scout's total displacement?
250 m SW
200
What is the average velocity of a tennis ball traveling north along the length of a tennis court, 24 m, in 0.5 s?
48 m/s N
200
#8) Felix decides to ride his bike down Old Talley Road and speeds up from rest with an acceleration of 2.3 m/s². What is his velocity at the end of 6.2 seconds?
14.26 m/s
200
#13) Based on the position vs. time graph below, what is the velocity of the object from 20 to 30 seconds?
3 m/s
200
What is the formula to solve for C when using the Pythagorean Theorem to solve for displacement?
C = sqrt (A2) + (B2)
300
#7) Looking at the position vs. time graph below, what is the object's displacement after 150 seconds?
40 m
300
#4) The Tower of the Americas is 176 m tall. If Bethany climbs up the stairs to the top with an average speed of 0.45 m/s, how long will it take her to climb from street level to the roof of the tower?
391.11 sec.
300
#15) As it rolls across the turf, a soccer ball slows from 20 m/s to 12 m/s in 3.2 seconds. What is the magnitude of its acceleration?
-2.5 m/s2
300
#14) Based on the position vs. time graph below, how would you characterize the motion of the object from 50 to 120 seconds?
The object is accelerating because the line is curved
300
What does the slope represent on a Position vs. Time graph?
Velocity
400
Lucy walks 300 meters east and then 200 meters west. What is her total distance traveled?
500 m
400
A sprinter runs at a constant speed of 8 m/s for 12 seconds. How far does the sprinter run?
96 m
400
#18) Tina accelerates on her hoverboard uniformly along a straight path from rest to 11 m/s over a distance of 22 m. What is Tina's acceleration?
2.75 m/s2
400
#9) What is the acceleration of the bike during the first 10 seconds?
-1 m/s2
400
What does the slope represent on a Velocity vs. Time graph?
Acceleration
500
A robot moves 6 meters east and then 8 meters north. What is its displacement?
10 m NE
500
A car travels 180 kilometers at an average speed of 60 km/h. How much time does the trip take?
3 hours
500
A cyclist starts from rest and accelerates at 2 m/s2 for 5 seconds. How far does the cyclist travel during this time?
25 m
500
#11) Look at the velocity vs. time graph for question #9. During which 10-second time interval did the bike have zero acceleration?
10-20 sec.
500
If an object is accelerating, what is changing?
The objects speed or direction