question

at some instant in time between t=1 and t=4

answer

At what time(s) do the rockets have the same velocity?
at time t=1 only
at time t=4 only
at times t=1 and t=4
at some instant in time between t=1 and t=4
at no time shown in the figure

question

at times t=1 and t=4

answer

At what time(s) do the rockets have the same x position?
ANSWER:
at time t=1 only
at time t=4 only
at times t=1 and t=4
at some instant in time between t=1 and t=4
at no time shown in the figure

question

at no time shown in the figure

answer

At what time(s) do the two rockets have the same acceleration?
at time t=1 only
at time t=4 only
at times t=1 and t=4
at some instant in time between t=1 and t=4
at no time shown in the figure

question

and nonzero acceleration

answer

The motion of the rocket labeled A is an example of motion with uniform (i.e., constant) __________.
ANSWER:
and nonzero acceleration
velocity
position
time

question

velocity

answer

The motion of the rocket labeled B is an example of motion with uniform (i.e., constant) __________.
ANSWER:
and nonzero acceleration
velocity
position
time

question

before t=1 and after t=4

answer

At what time(s) is rocket A ahead of rocket B?
before t=1 only
after t=4 only
before t=1 and after t=4
between t=1 and t=4
at no time(s) shown in the figure

question

vave[0,1] = 0 m/s

answer

Consulting the graph shown in the figure, find the object's average velocity over the time interval from 0 to 1 second.

question

vave[1,3] = 20 m/s

answer

Find the average velocity over the time interval from 1 to 3 seconds.

question

vave[0,3] = 13.3 m/s

answer

Now find vave[0,3].

question

vave[3.0,6.0] = -13.3 m/s

answer

Find the average velocity over the time interval from 3 to 6 seconds.

question

vave[0.0,6.0] = 0 m/s

answer

Finally, find the average velocity over the whole time interval shown in the graph.

question

D

answer

At which of the times do the two cars pass each other?

question

No

answer

Are the two cars traveling in the same direction when they pass each other?

question

none

answer

At which of the lettered times, if any, does car #1 momentarily stop?
A
B
C
D
E
none
cannot be determined

question

C

answer

At which of the lettered times, if any, does car #2 momentarily stop?
A
B
C
D
E
none
cannot be determined

question

A

answer

At which of the lettered times are the cars moving with nearly identical velocity?
A
B
C
D
E
none
cannot be determined

question

Graph 2

answer

time (s) 0 1 2 3 4 5 6 7 8 9
x (m) 0 1 4 9 16 24 32 40 46 48

question

Graph 4

answer

time (s) 0 1 2 3 4 5 6 7 8 9
x (m) 0 1 4 9 16 24 32 40 46 48

question

Graph 3

answer

time (s) 0 1 2 3 4 5 6 7 8 9
x (m) 0 1 4 9 16 24 32 40 46 48

question

Direction

answer

Answer the questions in this problem using words from the following list:
position
direction
displacement
coordinates
velocity
acceleration
distance
magnitude
vector
scalar
components
Velocity differs from speed in that velocity indicates a particle's __________ of motion.

question

Vector

answer

Answer the questions in this problem using words from the following list:
position
direction
displacement
coordinates
velocity
acceleration
distance
magnitude
vector
scalar
components
Unlike speed, velocity is a __________ quantity.

question

Magnitude

answer

Answer the questions in this problem using words from the following list:
position
direction
displacement
coordinates
velocity
acceleration
distance
magnitude
vector
scalar
components
A vector has, by definition, both __________ and direction.

question

Components

answer

Answer the questions in this problem using words from the following list:
position
direction
displacement
coordinates
velocity
acceleration
distance
magnitude
vector
scalar
components
Once you have selected a coordinate system, you can express a two-dimensional vector using a pair of quantities known collectively as __________.

question

Distance

answer

Answer the questions in this problem using words from the following list:
position
direction
displacement
coordinates
velocity
acceleration
distance
magnitude
vector
scalar
components
Speed differs from velocity in the same way that __________ differs from displacement.

question

Position, Displacement

answer

Answer the questions in this problem using words from the following list:
position
direction
displacement
coordinates
velocity
acceleration
distance
magnitude
vector
scalar
components
Consider a physical situation in which a particle moves from point A to point B. This process is described from two coordinate systems that are identical except that they have different origins.
The __________ of the particle at point A differ(s) as expressed in one coordinate system compared to the other, but the __________ from A to B is/are the same as expressed in both coordinate systems.

question

B

answer

Cheetahs, the fastest of the great cats, can reach 50.0 miles/hour in 2.22 s starting from rest. Assuming that they have constant acceleration throughout that time, find their acceleration in meters per second squared.

question

Cheetahs can reach vx = 50.0 miles/hour in t = 2.22 s starting from v0x=0. Assuming a=constant, what is ax?

answer

Cheetahs, the fastest of the great cats, can reach 50.0 miles/hour in 2.22 s starting from rest. Assuming that they have constant acceleration throughout that time, find their acceleration in meters per second squared.

question

ax = 10.1 m/s2

answer

Cheetahs, the fastest of the great cats, can reach 50.0 miles/hour in 2.22 s starting from rest. Assuming that they have constant acceleration throughout that time, find their acceleration in meters per second squared.
Finally, you are ready to answer the main question. Cheetahs, the fastest of the great cats, can reach 50.0 miles/hour in 2.22 s starting from rest. Assuming that they have constant acceleration throughout that time, find their acceleration in meters per second squared.

question

The acceleration of a cheetah is greater than the acceleration of a Thomson's gazelle but less than the acceleration of the space shuttle during liftoff.

answer

Cheetahs, the fastest of the great cats, can reach 50.0 miles/hour in 2.22 s starting from rest. Assuming that they have constant acceleration throughout that time, find their acceleration in meters per second squared.

question

3rd Option

answer

A stone is thrown upward from the edge of a cliff, reaches its maximum height, and then falls down into the valley below. A motion diagram for this situation is given in The figure shows a motion diagram of a stone thrown upward with velocity v. The stone is thrown at zero y-coordinate and zero time moment. The stone reaches a turning point when time t is equal to 2 seconds. Then, it reaches the bottom of the valley when time t is equal to 6 seconds. , beginning the instant the stone leaves the thrower's hand. Construct or select the corresponding motion graphs taking the magnitude of the acceleration due to gravity as exactly 10 m/s2. Ignore air resistance. In all three motion graphs, the unit of time is in seconds and the unit of displacement is in meters. In plotting the points, round-off the coordinate values to the nearest integer.

question

True

answer

The kinematic equations for such motion can be written as
x(t)=xi+vit+12at2,
v(t)=vi+at,
where the symbols are defined as follows:
x(t) is the position of the particle;
xi is the initial position of the particle;
v(t) is the velocity of the particle;
vi is the initial velocity of the particle;
True or False:
The quantity represented by x is a function of time (i.e., is not constant).

question

False

answer

The kinematic equations for such motion can be written as
x(t)=xi+vit+12at2,
v(t)=vi+at,
where the symbols are defined as follows:
x(t) is the position of the particle;
xi is the initial position of the particle;
v(t) is the velocity of the particle;
vi is the initial velocity of the particle;
True or False:
The quantity represented by xi is a function of time (i.e., is not constant).

question

False

answer

The kinematic equations for such motion can be written as
x(t)=xi+vit+12at2,
v(t)=vi+at,
where the symbols are defined as follows:
x(t) is the position of the particle;
xi is the initial position of the particle;
v(t) is the velocity of the particle;
vi is the initial velocity of the particle;
True or False:
The quantity represented by vi is a function of time (i.e., is not constant).

question

True

answer

The kinematic equations for such motion can be written as
x(t)=xi+vit+12at2,
v(t)=vi+at,
where the symbols are defined as follows:
x(t) is the position of the particle;
xi is the initial position of the particle;
v(t) is the velocity of the particle;
vi is the initial velocity of the particle;
True or False:
The quantity represented by v is a function of time (i.e., is not constant).

question

t=2t1+vi/2a

answer

At what time does the velocity of particle B equal that of particle A?
t=t1+vi/4a
t=2t1+vi/2a
t=3t1+vi/2a

question

v0 = 0.5 m/s

answer

What is the initial velocity of the particle, v0?

question

?x = 75m

answer

What is the total distance ?x traveled by the particle?

question

aav = 0.075 m/s2

answer

What is the average acceleration aav of the particle over the first 20.0 seconds?

question

-0.20 m/s2

answer

What is the instantaneous acceleration a of the particle at t=45.0s?
1 m/s2
0.20 m/s2
-0.20 m/s2
0.022 m/s2
-0.022 m/s2

question

Graph B

answer

The graph can be referred to in the previous 4 questions. Or, the graph looks like an upside-down U with a flat top.