Worksheet
Freefall #3 (Honors)
Printer Friendly Version
Refer to the following information for the next three questions.
While holding his rifle at shoulder-level, a 1.8 meter-tall hunter accidentally discharges it straight up into the air.
If the bullet exits the barrel of the rifle at 200 m/sec how many seconds does the hunter have to "step aside" to avoid being hit by the descending bullet?
How high did the bullet rise in the air before it starting falling back down to earth?
If he does not move fast enough, at what velocity would the descending bullet strike his shoulder?
Refer to the following information for the next two questions.
When rising to spike a ball in a volleyball game, a player jumps vertically 1.5 meters off the floor.
How much total time does he spend in the air, assuming he lands in the same position from which he left the ground.
At what velocity did he hit the ground at the end of the jump?
Refer to the following information for the next three questions.
Two students are tossing a set of keys from one to the other. The first student (who initially has the keys) is 1.8 meters tall and is standing on the ground 4 meters below the second student who is on a catwalk.
The student on the ground tosses the keys upward, releasing them exactly as his hand reaches the top of his head, with just the right velocity so that their apex coincides with the second student's outreached hand.
Which kinematics variables are stated in this problem?
v
_{ o}
initial velocity
v
_{ f}
final velocity
a
acceleration
s
displacement
t
time interval
How fast were the keys tossed?
How much time did the keys spend in the air?
Refer to the following information for the next three questions.
Suppose that the student on the balcony was distracted and failed to catch the keys and they fall back down to the ground.
With what velocity will they strike the grass at the feet of the first student?
True or False. The keys spent the same amount of time falling to the ground as they spent rising towards the balcony.
True
False
True or False. The keys struck the ground at the same speed as they were originally tossed upwards by the first student.
True
False
Refer to the following information for the next four questions.
Three students are standing side-by-side next to the railing on a fifth floor balcony. Simultaneously, the three students release their pennies.
One student proceeds to drop a penny to the ground below.
The second student tosses his penny straight downwards at 15 m/sec, while
The third student tosses his penny straight upwards at 15 m/sec.
Which penny or pennies strike(s) the ground first?
the penny that was dropped
the penny that was tossed upwards
the penny that was tossed downwards
Which penny or pennies strike(s) the ground last?
the penny that was dropped
the penny that was tossed upwards
the penny that was tossed downwards
Which penny or pennies strike(s) the ground with the greatest final velocity?
the penny that was dropped
the penny that was tossed upwards
the penny that was tossed downwards
As the pennies are falling, a person on the 3rd floor times one of the pennies as it passes her 1.5-meter tall bedroom window. If the penny took 0.15 seconds to clear her window, how fast was the penny traveling just as it entered the top of her window frame?
Refer to the following information for the next five questions.
A student, while packing up his book bag that islocated near the edge of a lab table 95-cm tall, accidentally drops his pencil on the floor.
Which kinematics variables are stated in this problem?
v
_{ o}
initial velocity
v
_{ f}
final velocity
a
acceleration
s
displacement
t
time interval
With what velocity with the pencil hit the floor?
How much time does it take the pencil to fall and strike the floor?
If the room temperature is 25 ºC, how much total time passed between when he lost his grip on the pencil and when he
hears
the sound of it hitting the floor?
Modeling this situation, how deep is a well if the sound of a penny striking the water is heard 4 seconds after the penny is released? You may assume that the temperature remains 25 ºC.
Related Documents
Lab:
Labs -
A Photoelectric Effect Analogy
Labs -
Acceleration Down an Inclined Plane
Labs -
Ballistic Pendulum: Muzzle Velocity
Labs -
Coefficient of Friction
Labs -
Collision Pendulum: Muzzle Velocity
Labs -
Conservation of Momentum
Labs -
Cookie Sale Problem
Labs -
Flow Rates
Labs -
Freefall Mini-Lab: Reaction Times
Labs -
Freefall: Timing a Bouncing Ball
Labs -
Galileo Ramps
Labs -
Gravitational Field Strength
Labs -
Home to School
Labs -
InterState Map
Labs -
LAB: Ramps - Accelerated Motion
Labs -
LabPro: Newton's 2nd Law
Labs -
LabPro: Uniformly Accelerated Motion
Labs -
Mass of a Rolling Cart
Labs -
Moment of Inertia of a Bicycle Wheel
Labs -
Monkey and the Hunter Animation
Labs -
Monkey and the Hunter Screen Captures
Labs -
Projectiles Released at an Angle
Labs -
Ramps: Sliding vs Rolling
Labs -
Range of a Projectile
Labs -
Roller Coaster, Projectile Motion, and Energy
Labs -
Rube Goldberg Challenge
Labs -
Target Lab: Ball Bearing Rolling Down an Inclined Plane
Labs -
Terminal Velocity
Labs -
Video LAB: A Gravitron
Labs -
Video Lab: Ball Bouncing Across a Stage
Labs -
Video LAB: Ball Re-Bounding From a Wall
Labs -
Video Lab: Cart Push #2 and #3
Labs -
Video Lab: Falling Coffee Filters
Labs -
Video Lab: Two-Dimensional Projectile Motion
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 -
Directions: Flash Cards
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 -
Advanced Properties of Freely Falling Bodies #1
WS -
Advanced Properties of Freely Falling Bodies #2
WS -
Advanced Properties of Freely Falling Bodies #3
WS -
Average Speed and Average Velocity
WS -
Average Speed Drill
WS -
Charged Projectiles in Uniform Electric Fields
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 -
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 -
Lab Discussion: Gravitational Field Strength and the Acceleration Due to Gravity
WS -
Position-Time Graph "Story" Combinations
WS -
Projectiles Released at an Angle
WS -
Rotational Kinetic Energy
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
PhysicsLAB
Copyright © 1997-2017
Catharine H. Colwell
All rights reserved.
Application Programmer
Mark Acton