Describe and analyze motion in one dimension using equations and graphical vector addition with the concepts of distance, displacement, speed, average velocity, instantaneous velocity, frames of reference, and acceleration.
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Q 1/21
Score 0
A car travels at a constant 60 km per hour in the positive direction down a straight line
highway. What is the displacement, in standard units, of the car 45 seconds later?
120
60 km
.75 km
45 km
1.3 km
Q 2/21
Score 0
One drops a penny from the top of the Empire State Building on to the ground below. The height of the Empire State Building is 443 m.
How long will it take for the penny to strike the ground, assuming no air resistance?
120
9.5 s
6.7 s
45.2 s
90.4 s
21 questions
Q.
A car travels at a constant 60 km per hour in the positive direction down a straight line
highway. What is the displacement, in standard units, of the car 45 seconds later?
1
120 sec
112.39.c.4.b
Q.
One drops a penny from the top of the Empire State Building on to the ground below. The height of the Empire State Building is 443 m.
How long will it take for the penny to strike the ground, assuming no air resistance?
2
120 sec
112.39.c.4.b
Q.
An airplane initially travels at 10.0 m/s when passing the “acceleration line”. The airplane then accelerates at 8.00 m/s^2 until reaching its take off velocity of 40.0 m/s.
What is the displacement of the plane during the acceleration?
3
120 sec
112.39.c.4.b
Q.
A ball initially rolling at 10 m/s comes to a stop in 25 seconds. Assuming the ball has uniform acceleration, how far does it travel during this time interval?
4
120 sec
112.39.c.4.b
Q.
A student throws a rock upwards. The rock reaches a maximum height 2.4 seconds after it was released.
How fast was the rock thrown?
5
120 sec
112.39.c.4.b
Q.
A student throws a ball straight down off a very high building with a magnitude of
3.0 m/s. The ball accelerates in free fall for 2.0 s.
What is the rounded velocity at 2.0 s?
6
120 sec
112.39.c.4.b
Q.
A boat initially moving at 10 m/s accelerates at 2 m/s^2 for 10 s. What is the velocity of the boat after 10 seconds?
7
120 sec
112.39.c.4.b
Q.
A pitcher throws a fastball horizontally toward home plate 18.39 meters away. If the ball is traveling at a speed of 40.0 m/s, neglecting air friction, how long does it take for the ball to get to home plate?
8
120 sec
112.39.c.4.b
Q.
A cruise ship travels directly toward the dock with a velocity of 12 m/s relative to the water.
A passenger walks 2 m/s in the same direction as shown in the picture below.
According to the information and diagram, how far has the passenger traveled relative to the dock after three seconds?
9
120 sec
112.39.c.4.b
Q.
A horizontal escalator is a move-able walkway often seen at airports. One escalator has a velocity of 2 m/s and is used to move people to a gate 200 m away. Two different people were traveling to the gate. The first person stood still on the escalator while the second person was walking on it at 3 m/s.
According to the information and diagram above, how much longer would it take the first person to arrive at the gate?
10
120 sec
112.39.c.4.b
Q.
The motion of several students is shown in the picture below.
According to the information and diagram above, which student has the greatest magnitude of velocity relative to Ani?
11
120 sec
112.39.c.4.b
Q.
A train travels north at a speed of 50 m/s. A passenger walks toward the rear of the train at a speed of 2 m/s. A person standing on a platform at the train station observes the motion of the passenger as the train passes.
According to the information and diagram above, what is the apparent speed of the
passenger with respect to the train station platform?
12
120 sec
112.39.c.4.b
Q.
A plane initially traveling at 200 m/s due west experiences a 10 m/s head wind as shown below.
Refer to the information and diagram. Assuming the plane is traveling directly toward its destination and on schedule BEFORE experiencing the wind, the plane will most likely be —
13
120 sec
112.39.c.4.b
Q.
A car travels at a constant 60 km per hour in the positive direction down a straight line
highway. In order to find the displacement, in standard units, of the car 45 seconds later, what equation would I use AFTER I have already converted.
14
120 sec
112.39.c.4.b
Q.
One drops a penny from the top of the Empire State Building on to the ground below. The height of the Empire State Building is 443 m. If I wanted to know how long it will take for the penny to strike the ground, What equation would I use?
15
120 sec
112.39.c.4.b
Q.
An airplane initially travels at 10.0 m/s when passing the “acceleration line”. The airplane then accelerates at 8.00 m/s^2 until reaching its take off velocity of 40.0 m/s.
If I wanted to find the displacement of the plane during the acceleration, what equation would I use?
16
120 sec
112.39.c.4.b
Q.
A ball initially rolling at 10 m/s comes to a stop in 25 seconds. If I wanted to determine how far it travels during this time interval, which equation should I use?
17
120 sec
112.39.c.4.b
Q.
A horizontal escalator is a move-able walkway often seen at airports. One escalator has a velocity of 2 m/s and is used to move people to a gate 200 m away. Two different people were traveling to the gate. The first person stood still on the escalator while the second person was walking on it at 3 m/s.
What equation would you use to determine the amount of time it took either passenger to reach their 200 m destination.
18
120 sec
112.39.c.4.b
Q.
A cruise ship travels directly toward the dock with a velocity of 12 m/s relative to the water.
A passenger walks 2 m/s in the same direction as shown in the picture below.
What equation would you use to determine, how far has the passenger traveled relative to the dock after three seconds?
19
120 sec
112.39.c.4.b
Q.
A pitcher throws a fastball horizontally toward home plate 18.39 meters away. If the ball is traveling at a speed of 40.0 m/s,. Which equation would you use to determine how long it takes for the ball to get to the home plate?
20
120 sec
112.39.c.4.b
Q.
A boat initially moving at 10 m/s accelerates at 2 m/s^2 for 10 s. Which equation would you use to determine the velocity the boat was traveling after 10 seconds?
