PHYS Straighterline – Questions With Verified Solutions
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An amusement park game consists of 4.8 m / s
throwing a quarter into a small bowl. If you
win, you get to take home a giant purple
stuffed elephant. The dish is on a shelf that is
0.4 m above the point where the quarter
leaves your hand. The horizontal distance
between the bowl and the place where the
quarter leaves your hand is 1.8 m. Ignoring
air drag, if you toss the quarter at an angle
of 60°, what initial velocity is needed to
bring home the giant purple stuffed
elephant?
If the x-component of a vector is 3 and the 5
y-component is 4, what is the magnitude of
the vector?
Which of the following is involved in uniform constant angular velocity
circular motion?
As shown, a crate of oranges and a crate of Toa > To
apples, each with a different mass, are
attached by a rope (with tension Toa). A
second rope (To ) is attached to the crate of
oranges, and the entire system is pulled with
a constant acceleration a by this rope.
Which of the following is true of the
tensions?
How can you calculate the magnitude of a Multiply it by itself and take the square root.
vector using scalar products?
Suppose you weigh an object and the Two
reading you get from the scale is 0.0070 kg.
How many significant digits does your
measurement have?
,Consider two objects sliding down an false
incline without rolling. If the objects don't
have the same mass, the heavier object will
accelerate at a faster rate than the lighter
one.
Which of the following statements The force of friction mostly depends on the nature of the two
concerning friction between the surfaces of surfaces.
two objects is correct?
Calculate x=vt+1/2at2, where v = 0.227 m/s. t = 606 m
11.1s, and a = 9.80 m/s2.
Which of the following statements The force of static friction ( fs ) between parallel surfaces in
concerning friction is incorrect? contact is given by: fs = μsN.
A car travels with a speed of 3.5 m / s, and 0.5 m / s2
then accelerates to 5.5 m / s in 4 s. Which of
the following is the average acceleration of
the car?
If the cross product of a vector of length 5 42°
and a vector of length 3 results in a vector
of length 10, what is the angle between
them?
A vector is quantity that requires both direction
magnitude and ________.
King Kong is holding a woman on top of a 25.9 m
skyscraper when she suddenly slips out of
his hand. How tall is the building if
Superman has a minimum time of 2.30 s to
catch the woman before she hits the
ground?
Kylie throws Kyra a kiwi. The kiwi leaves 9.6 m
Kylie's hand at a height of 1.3 m from the
ground and Kyra grabs it out of the air at a
height of 1.6 m. Kylie throws the kiwi at an
angle of 33° relative to the horizontal. The
kiwi is in the air for 1.1 s. How far apart are
Kylie and Kyra standing? (Assume there is
no drag force that no wind is blowing.)
A projectile is launched from a height of 250 357 m
m with initial horizontal velocity of 50 m/s.
What is the horizontal range of the
projectile?
Imagine that you push down on an object F W down, N up
that is sitting on a frictionless table. Which of
the following diagrams includes all the
forces acting on the object?
, Your cat chases a spider across the floor. Its 2.3 m/s
position is a function of time is r + (1.2m/s)ti +
(0.7m + (0.5m/s2)t2)j, where the origin is the
southwest corner of the floor. Find the
average speed of the cat between t = 0.0s
and t = 4.0s
The position of an object along the x-axis is v = 6t − 2, a = 6
described by the formula x = 3t 2 − 2t. Which
of the following are the correct formulas for
the velocity and acceleration of the object?
Using the conversion factor between 4.41 lb
kilograms and pounds, 1 kg = 2.205 lb,
calculate how many pounds are in 2.00 kg.
An experimental new ride at an amusement 2a
park begins by spinning patrons about a
circle of radius R with constant speed v. At
some point during the ride the speed
doubles and the spokes extend, doubling
the radius. After this occurs, what is the
acceleration of the patrons in terms of the
original acceleration, a ?
Consider a mass of 85kg lying on the 541 N
ground. The coefficient of static friction
between them is us = 0.65. What is the
minimum force you need to apply in order
to slide the mass?
When turning around a circle, a car is The speed is not changing, but the direction is.
subject to a continuous force, but its speed
does not necessarily change. Why is this
true?
A small mass is placed on a turntable that is greater when the mass is farther from the center of the circle
rotating at 45 rpm. The centripetal
acceleration is ____________.
How many significant figures are in the 3
quantity
9.86 m/s 2?
Laura is listening to a record spinning at 45 1.8
rpm (revolutions per minute). When she
switches the speed selector on the record
player to 33 rpm, it takes 2.7 seconds for the
record player to change to the new speed.
How many revolutions does the record
make during this time? Assume that the
angular acceleration of the record is
constant.
Save
Students also studied
Chapter 29- Chest and Abdominal Tr... Chapter 21 Test Ch. 22 Study Guide
348 terms 24 terms 32 terms
anaphylacticshock Preview kenanderson2017 Preview Kendall_Dinning
Terms in this set (234)
An amusement park game consists of 4.8 m / s
throwing a quarter into a small bowl. If you
win, you get to take home a giant purple
stuffed elephant. The dish is on a shelf that is
0.4 m above the point where the quarter
leaves your hand. The horizontal distance
between the bowl and the place where the
quarter leaves your hand is 1.8 m. Ignoring
air drag, if you toss the quarter at an angle
of 60°, what initial velocity is needed to
bring home the giant purple stuffed
elephant?
If the x-component of a vector is 3 and the 5
y-component is 4, what is the magnitude of
the vector?
Which of the following is involved in uniform constant angular velocity
circular motion?
As shown, a crate of oranges and a crate of Toa > To
apples, each with a different mass, are
attached by a rope (with tension Toa). A
second rope (To ) is attached to the crate of
oranges, and the entire system is pulled with
a constant acceleration a by this rope.
Which of the following is true of the
tensions?
How can you calculate the magnitude of a Multiply it by itself and take the square root.
vector using scalar products?
Suppose you weigh an object and the Two
reading you get from the scale is 0.0070 kg.
How many significant digits does your
measurement have?
,Consider two objects sliding down an false
incline without rolling. If the objects don't
have the same mass, the heavier object will
accelerate at a faster rate than the lighter
one.
Which of the following statements The force of friction mostly depends on the nature of the two
concerning friction between the surfaces of surfaces.
two objects is correct?
Calculate x=vt+1/2at2, where v = 0.227 m/s. t = 606 m
11.1s, and a = 9.80 m/s2.
Which of the following statements The force of static friction ( fs ) between parallel surfaces in
concerning friction is incorrect? contact is given by: fs = μsN.
A car travels with a speed of 3.5 m / s, and 0.5 m / s2
then accelerates to 5.5 m / s in 4 s. Which of
the following is the average acceleration of
the car?
If the cross product of a vector of length 5 42°
and a vector of length 3 results in a vector
of length 10, what is the angle between
them?
A vector is quantity that requires both direction
magnitude and ________.
King Kong is holding a woman on top of a 25.9 m
skyscraper when she suddenly slips out of
his hand. How tall is the building if
Superman has a minimum time of 2.30 s to
catch the woman before she hits the
ground?
Kylie throws Kyra a kiwi. The kiwi leaves 9.6 m
Kylie's hand at a height of 1.3 m from the
ground and Kyra grabs it out of the air at a
height of 1.6 m. Kylie throws the kiwi at an
angle of 33° relative to the horizontal. The
kiwi is in the air for 1.1 s. How far apart are
Kylie and Kyra standing? (Assume there is
no drag force that no wind is blowing.)
A projectile is launched from a height of 250 357 m
m with initial horizontal velocity of 50 m/s.
What is the horizontal range of the
projectile?
Imagine that you push down on an object F W down, N up
that is sitting on a frictionless table. Which of
the following diagrams includes all the
forces acting on the object?
, Your cat chases a spider across the floor. Its 2.3 m/s
position is a function of time is r + (1.2m/s)ti +
(0.7m + (0.5m/s2)t2)j, where the origin is the
southwest corner of the floor. Find the
average speed of the cat between t = 0.0s
and t = 4.0s
The position of an object along the x-axis is v = 6t − 2, a = 6
described by the formula x = 3t 2 − 2t. Which
of the following are the correct formulas for
the velocity and acceleration of the object?
Using the conversion factor between 4.41 lb
kilograms and pounds, 1 kg = 2.205 lb,
calculate how many pounds are in 2.00 kg.
An experimental new ride at an amusement 2a
park begins by spinning patrons about a
circle of radius R with constant speed v. At
some point during the ride the speed
doubles and the spokes extend, doubling
the radius. After this occurs, what is the
acceleration of the patrons in terms of the
original acceleration, a ?
Consider a mass of 85kg lying on the 541 N
ground. The coefficient of static friction
between them is us = 0.65. What is the
minimum force you need to apply in order
to slide the mass?
When turning around a circle, a car is The speed is not changing, but the direction is.
subject to a continuous force, but its speed
does not necessarily change. Why is this
true?
A small mass is placed on a turntable that is greater when the mass is farther from the center of the circle
rotating at 45 rpm. The centripetal
acceleration is ____________.
How many significant figures are in the 3
quantity
9.86 m/s 2?
Laura is listening to a record spinning at 45 1.8
rpm (revolutions per minute). When she
switches the speed selector on the record
player to 33 rpm, it takes 2.7 seconds for the
record player to change to the new speed.
How many revolutions does the record
make during this time? Assume that the
angular acceleration of the record is
constant.
