CP Workbook
Force and Acceleration
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Use the following information to answer the next six questions.
Shelly the skater, total mass 25 kg, is propelled by rocket power.
Complete Table I. (neglect any resistance)
Force
(N)
acceleration
(m/sec
^{2}
)
100
200
250
Complete Table II for a constant 50-N resistance.
Force
(N)
acceleration
(m/sec
^{2}
)
50
100
200
Refer to the following information for the next five questions.
Block A on a horizontal friction-free table is accelerated by a force from a string attached to Block B. B falls vertically and drags A horizontally. Both blocks have the same mass
m
. (Neglect the string's mass.)
The mass of the system [A+ B] is
m
2m
The force that accelerates [A + B] is the weight of
A
B
A + B
The weight of B is
½ mg
mg
2mg
Acceleration of [A + B] is
less than g
g
more than g
Calculate the exact acceleration of [A + B] in m/sec
^{2}
Refer to the following information for the next three questions.
Suppose A is still a 1-kg block, but B is a low-mass feather (or a coin).
Compared to the acceleration of the previous system, the acceleration of [ A + B ] here is
less
more
and is
close to zero
close to g
In this case the acceleration of B is
practically that of free fall
constrained
Refer to the following information for the next two questions.
Suppose A is a feather, or coin, and B has a mass of 1 kg.
The acceleration of [A + B] here is
close to zero
close to g
In this case the acceleration of B is
practically that of free fall
constrained
Summarizing the three cases we have examined, where the weight of one object causes the acceleration of two objects, we see the range of possible accelerations is
between zero and g
between zero and infinity
between g and infinity
Refer to the following information for the next three questions.
A ball rolls down a uniform-slope ramp.
Acceleration is
decreasing
constant
increasing
If the ramp were steeper, acceleration would be
more
the same
less
When the ball reaches the bottom and rolls along the smooth level surface it
continues to accelerate
does not accelerate
Related Documents
Lab:
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Coefficient of Friction
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Coefficient of Friction
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Coefficient of Kinetic Friction (pulley, incline, block)
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Conservation of Momentum in Two-Dimensions
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Resource Lesson:
RL -
Advanced Gravitational Forces
RL -
Air Resistance
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Air Resistance: Terminal Velocity
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Forces Acting at an Angle
RL -
Freebody Diagrams
RL -
Gravitational Energy Wells
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Inclined Planes
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Inertial vs Gravitational Mass
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Newton's Laws of Motion
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Non-constant Resistance Forces
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Properties of Friction
RL -
Springs and Blocks
RL -
Springs: Hooke's Law
RL -
Static Equilibrium
RL -
Systems of Bodies
RL -
Tension Cases: Four Special Situations
RL -
The Law of Universal Gravitation
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Universal Gravitation and Satellites
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Universal Gravitation and Weight
RL -
What is Mass?
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Work and Energy
Worksheet:
APP -
Big Fist
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Family Reunion
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The Antelope
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The Box Seat
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The Jogger
CP -
Action-Reaction #1
CP -
Action-Reaction #2
CP -
Equilibrium on an Inclined Plane
CP -
Falling and Air Resistance
CP -
Force and Weight
CP -
Force Vectors and the Parallelogram Rule
CP -
Freebody Diagrams
CP -
Gravitational Interactions
CP -
Incline Places: Force Vector Resultants
CP -
Incline Planes - Force Vector Components
CP -
Inertia
CP -
Mobiles: Rotational Equilibrium
CP -
Net Force
CP -
Newton's Law of Motion: Friction
CP -
Static Equilibrium
CP -
Tensions and Equilibrium
NT -
Acceleration
NT -
Air Resistance #1
NT -
An Apple on a Table
NT -
Apex #1
NT -
Apex #2
NT -
Falling Rock
NT -
Falling Spheres
NT -
Friction
NT -
Frictionless Pulley
NT -
Gravitation #1
NT -
Head-on Collisions #1
NT -
Head-on Collisions #2
NT -
Ice Boat
NT -
Rotating Disk
NT -
Sailboats #1
NT -
Sailboats #2
NT -
Scale Reading
NT -
Settling
NT -
Skidding Distances
NT -
Spiral Tube
NT -
Tensile Strength
NT -
Terminal Velocity
NT -
Tug of War #1
NT -
Tug of War #2
NT -
Two-block Systems
WS -
Advanced Properties of Freely Falling Bodies #1
WS -
Advanced Properties of Freely Falling Bodies #2
WS -
Calculating Force Components
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Charged Projectiles in Uniform Electric Fields
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Combining Kinematics and Dynamics
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Distinguishing 2nd and 3rd Law Forces
WS -
Force vs Displacement Graphs
WS -
Freebody Diagrams #1
WS -
Freebody Diagrams #2
WS -
Freebody Diagrams #3
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Freebody Diagrams #4
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Introduction to Springs
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Kinematics Along With Work/Energy
WS -
Lab Discussion: Gravitational Field Strength and the Acceleration Due to Gravity
WS -
Lab Discussion: Inertial and Gravitational Mass
WS -
net F = ma
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Practice: Vertical Circular Motion
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Ropes and Pulleys in Static Equilibrium
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Standard Model: Particles and Forces
WS -
Static Springs: The Basics
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Vocabulary for Newton's Laws
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Work and Energy Practice: Forces at Angles
TB -
Systems of Bodies (including pulleys)
TB -
Work, Power, Kinetic Energy
Paul G. Hewitt
Copyright © 1984-2005
All rights reserved.
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permission.
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