PhysicsLAB: Average Speed and Average Velocity

PhysicsLAB

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Average Speed and Average Velocity

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Which vector diagram represents the greatest magnitude of displacement for an object?

What would be the total displacement of a student who walks 3 blocks east, 2 blocks north, 1 block west, and then 2 blocks south?

A group of bike riders took a 4.0 hour trip. During the first 3.0 hours, they traveled a total of 50. kilometers but during the last hour they traveled only 10. kilometers. What was the group's average speed for the entire trip?

13 km/hr15 km/hr30. km/hr40. km/hr

Now, suppose a car travels 90. meters due north in 15 seconds. Then the car turns around and travels 40. meters due south in 5.0 seconds. What is the magnitude of the average velocity of the car during this 20.-second interval?

2.5 m/s5.0 m/s6.5 m/s7.0 m/s

Which set of terms pairs up an initial vector quantity with its associated scalar quantity?

acceleration and velocity
distance and displacement
speed and time
weight and mass

A baseball pitcher throws a fastball at 42 meters per second. If the batter is 18 meters from the pitcher, approximately how much time does it take for the ball to reach the batter?

0.43 sec0.86 sec1.0 sec2.3 sec

The position of two blocks at successive 0.20 second time intervals are represented by the numbered squares in the diagram below. The blocks are moving toward the right. Do the blocks ever have the same speed?

No.
Yes, at exactly 2.
Yes, at exactly 2 and then again at 5.
Yes, some time during interval from 3 to 4.

A motorist travels 400 km at 80 km/h and 400 km in at 100 km/h. What is the average speed of the motorist on this trip?

84 km/hr89 km/hr90 km/hr91 km/hr95 km/hr

A toy car moves 0.80 m in 0.5 s at the constant velocity. If it continues, how far will it travel in 3.0 s?

Refer to the following information for the next four questions.

The following position-time graph depicts the behavior of a cart. Note that the exact time intervals are not specified.

During which interval was the cart at rest?

ABBCCDDE

During which interval was the cart moving in a negative direction?

ABBCCDDE

During which of these two intervals, BC and DE, was the cart traveling at a faster rate?

BCDE

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Resource Lesson:	RL - Accelerated Motion: A Data Analysis Approach RL - Accelerated Motion: Velocity-Time Graphs RL - Analyzing SVA Graph Combinations RL - Average Velocity - A Calculus Approach RL - Chase Problems RL - Chase Problems: Projectiles RL - Comparing Constant Velocity Graphs of Position-Time & Velocity-Time RL - Constant Velocity: Position-Time Graphs RL - Constant Velocity: Velocity-Time Graphs RL - Derivation of the Kinematics Equations for Uniformly Accelerated Motion RL - Derivatives: Instantaneous vs Average Velocities RL - Freefall: Horizontally Released Projectiles (2D-Motion) RL - Freefall: Projectiles in 1-Dimension RL - Freefall: Projectiles Released at an Angle (2D-Motion) RL - Monkey and the Hunter RL - Summary: Graph Shapes for Constant Velocity RL - Summary: Graph Shapes for Uniformly Accelerated Motion RL - SVA: Slopes and Area Relationships RL - Vector Resultants: Average Velocity
Review:	REV - Test #1: APC Review Sheet
Worksheet:	APP - Hackensack APP - The Baseball Game APP - The Big Mac APP - The Cemetary APP - The Golf Game APP - The Spring Phling CP - 2D Projectiles CP - Dropped From Rest CP - Freefall CP - Non-Accelerated and Accelerated Motion CP - Tossed Ball CP - Up and Down NT - Average Speed NT - Back-and-Forth NT - Crosswinds NT - Headwinds NT - Monkey Shooter NT - Pendulum NT - Projectile WS - Accelerated Motion: Analyzing Velocity-Time Graphs WS - Accelerated Motion: Graph Shape Patterns WS - Accelerated Motion: Practice with Data Analysis WS - Average Speed Drill WS - Chase Problems #1 WS - Chase Problems #2 WS - Chase Problems: Projectiles WS - Combining Kinematics and Dynamics WS - Constant Velocity: Converting Position and Velocity Graphs WS - Constant Velocity: Position-Time Graphs #1 WS - Constant Velocity: Position-Time Graphs #2 WS - Constant Velocity: Position-Time Graphs #3 WS - Constant Velocity: Velocity-Time Graphs #1 WS - Constant Velocity: Velocity-Time Graphs #2 WS - Constant Velocity: Velocity-Time Graphs #3 WS - Converting s-t and v-t Graphs WS - Energy Methods: More Practice with Projectiles WS - Energy Methods: Projectiles WS - Force vs Displacement Graphs WS - Freefall #1 WS - Freefall #2 WS - Freefall #3 WS - Freefall #3 (Honors) WS - Horizontally Released Projectiles #1 WS - Horizontally Released Projectiles #2 WS - Kinematics Along With Work/Energy WS - Kinematics Equations #1 WS - Kinematics Equations #2 WS - Kinematics Equations #3: A Stop Light Story WS - Position-Time Graph "Story" Combinations WS - Projectiles Released at an Angle WS - SVA Relationships #1 WS - SVA Relationships #2 WS - SVA Relationships #3 WS - SVA Relationships #4 WS - SVA Relationships #5 WS - Work and Energy Practice: An Assortment of Situations TB - 2A: Introduction to Motion TB - 2B: Average Speed and Average Velocity TB - Antiderivatives and Kinematics Functions TB - Honors: Average Speed/Velocity TB - Kinematics Derivatives TB - Projectile Summary TB - Projectile Summary TB - Projectiles Mixed (Vertical and Horizontal Release) TB - Projectiles Released at an Angle TB - Set 3A: Projectiles

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