Analyze and describe accelerated motion in two dimensions, including using equations, graphical vector addition, and projectile and circular examples.
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Q 1/16
Score 0
A student throws a baseball upwards at an angle of 60 degrees to the horizontal. The initial horizontal and vertical components are 12.5 m/s and 21.7 m/s, respectively.
According to the information and diagram shown above, what position will have the greatest magnitude of vertical acceleration?
120
A
The magnitude of acceleration is the same at all the positions.
C
B
Q 2/16
Score 0
A student throws a baseball upwards at an angle of 60 degrees to the horizontal. The initial horizontal and vertical components are 12.5 m/s and 21.7 m/s, respectively.
Refer to the above information and diagram. What position will have the smallest magnitude of vertical velocity?
120
B
C
A
All positions have the same magnitude of velocity.
16 questions
Q.
A student throws a baseball upwards at an angle of 60 degrees to the horizontal. The initial horizontal and vertical components are 12.5 m/s and 21.7 m/s, respectively.
According to the information and diagram shown above, what position will have the greatest magnitude of vertical acceleration?
1
120 sec
112.39.c.4.c
Q.
A student throws a baseball upwards at an angle of 60 degrees to the horizontal. The initial horizontal and vertical components are 12.5 m/s and 21.7 m/s, respectively.
Refer to the above information and diagram. What position will have the smallest magnitude of vertical velocity?
2
120 sec
112.39.c.4.c
Q.
A student throws a baseball upwards at an angle of 60 degrees to the horizontal. The initial horizontal and vertical components are 12.5 m/s and 21.7 m/s, respectively.
Refer to the information and diagram shown above. At position C, the ball will have a
horizontal velocity of ―
3
120 sec
112.39.c.4.c
Q.
A student throws a baseball upwards at an angle of 60 degrees to the horizontal. The initial horizontal and vertical components are 12.5 m/s and 21.7 m/s, respectively.
According to the information and diagram above, the student can maximize the horizontal displacement of the baseball by —
4
120 sec
112.39.c.4.c
Q.
A student throws a baseball upwards at an angle of 60 degrees to the horizontal. The initial horizontal and vertical components are 12.5 m/s and 21.7 m/s, respectively.
Refer to the information and diagram above. The student would like to increase the flight
time of the baseball without changing the angle the ball is released.
What can the student do to increase the flight time of the ball?
5
120 sec
112.39.c.4.c
Q.
Astronauts often undergo special training in which they are subjected to extremely high centripetal accelerations. One device has a radius of 15 m and can accelerate a person at
98 m/s .
What is the speed of the astronaut in this device?
6
120 sec
112.39.c.4.c
Q.
A baseball was thrown with an initial velocity of 14 m/s at an angle above the horizontal. It remained in the air for 2 s.
Which of the following quantities was constant while the baseball was in the air?
7
120 sec
112.39.c.4.c
Q.
Compared to the range of a bullet shot horizontally just above horizontal ground, a bullet shot from the same position at an angle of 30 degrees with the same initial velocity as the first bullet, would travel a horizontal distance that is ―
8
120 sec
112.39.c.4.c
Q.
A student athlete is participating in the hammer throw. The student rotates in uniform
circular motion with the mass rotating 2.3 m away from the center of rotation.
Refer to the information and diagram shown above. The student athlete can rotate so that the object is moving with a speed of 10 m/s.
What is the acceleration necessary to maintain uniform circular motion?
9
120 sec
112.39.c.4.c
Q.
A student athlete is participating in the hammer throw. The student rotates in uniform
circular motion with the mass rotating 2.3 m away from the center of rotation.
Refer to the information and diagram above. The University Interscholastic League (UIL) is considering adding an event that increases the length of the chain, doubling the distance from the athlete to the mass.
By what factor will the acceleration of the ball change if the speed remains unchanged?
10
120 sec
112.39.c.4.c
Q.
A student is attempting to hit a target 4 m from the edge of a desk that is 1.4 m tall. The
marble rolls off a table horizontally as shown below. According to the above information and diagram, what velocity must the marble have to strike the target?
11
120 sec
112.39.c.4.c
Q.
Rock A is thrown horizontally off of a cliff with a velocity of 20 m/s. The rock lands 60 m from the base of the cliff.
Refer to the above information and diagram. What is the magnitude of velocity for the
horizontal component just before Rock A strikes the ground?
12
120 sec
112.39.c.4.c
Q.
Rock A is thrown horizontally off of a cliff with a velocity of 20 m/s. The rock lands 60 m from the base of the cliff.
According to the information and diagram shown above, what is the magnitude of the vertical acceleration for Rock A after it is released?
13
120 sec
112.39.c.4.c
Q.
Rock A is thrown horizontally off of a cliff with a velocity of 20 m/s. The rock lands 60 m from the base of the cliff.
Refer to the information and diagram shown above. A second rock (Rock B) is thrown from the same height from which Rock A was dropped.
If both rocks are released simultaneously, which rock will strike the ground first?
14
120 sec
112.39.c.4.c
Q.
Rock A is thrown horizontally off of a cliff with a velocity of 20 m/s. The rock lands 60 m from the base of the cliff.
According to the above information and diagram, how long will Rock A be in the air?
15
120 sec
112.39.c.4.c
Q.
Rock A is thrown horizontally off of a cliff with a velocity of 20 m/s. The rock lands 60 m from the base of the cliff.
According to the information and diagram above, what is the height of the cliff?
