Velocity and Points
gazieva (kg26393) – Projectile Motion – su – (8020313)
This print-out should have 21 questions.
Multiple-choice questions may continue on the next column or page – find all choices before answering.
001 10.0 points
How does the vertical component of a projectile’s motion compare with the motion of vertical free fall when air resistance is negligible?
1. Less than that of free fall
2. Greater than that of free fall
3. Identical to that of free fall
1
the ground depends on v0 .
3. The ball is freely falling with acceleration g, from the instant it is released until it strikes the ground.
4. The time it takes for the ball to hit the ground depends on v0 , g and h.
004 10.0 points
The velocity of a projectile at launch has a horizontal component vh and a vertical component vv . When the projectile is at the highest point of its trajectory, identify the vertical and the horizontal components of its velocity and the vertical component of its acceleration.
Consider air resistance to be negligible.
4. It cannot be determined.
002 10.0 points
A heavy crate accidentally falls from a highflying airplane just as it flies directly above a shiny red Camaro parked in a parking lot.
Relative to the Camaro, where will the crate crash?
Vertical
Velocity
Horizontal
Velocity
Vertical
Acceleration
1.
vv
vh
0
2.
vv
0
0
3.
0
vh
0
4.
0
0
g
5.
0
vh
g
1. The crate will hit the Camaro.
2. The crate will continue to fly and will not crash. 3. The crate will not hit the Camaro, but will crash a distance beyond it determined by the height and speed of the plane.
4. The crate will hit the front part of the car. 003 10.0 points
A ball is thrown horizontally at speed v0 from the top edge of a cliff of height h.
Neglecting air resistance, which statement is wrong?
1. The time it takes for the ball to hit the ground does not depend in any way on v0 .
2. The horizontal distance
This print-out should have 21 questions.
Multiple-choice questions may continue on the next column or page – find all choices before answering.
001 10.0 points
How does the vertical component of a projectile’s motion compare with the motion of vertical free fall when air resistance is negligible?
1. Less than that of free fall
2. Greater than that of free fall
3. Identical to that of free fall
1
the ground depends on v0 .
3. The ball is freely falling with acceleration g, from the instant it is released until it strikes the ground.
4. The time it takes for the ball to hit the ground depends on v0 , g and h.
004 10.0 points
The velocity of a projectile at launch has a horizontal component vh and a vertical component vv . When the projectile is at the highest point of its trajectory, identify the vertical and the horizontal components of its velocity and the vertical component of its acceleration.
Consider air resistance to be negligible.
4. It cannot be determined.
002 10.0 points
A heavy crate accidentally falls from a highflying airplane just as it flies directly above a shiny red Camaro parked in a parking lot.
Relative to the Camaro, where will the crate crash?
Vertical
Velocity
Horizontal
Velocity
Vertical
Acceleration
1.
vv
vh
0
2.
vv
0
0
3.
0
vh
0
4.
0
0
g
5.
0
vh
g
1. The crate will hit the Camaro.
2. The crate will continue to fly and will not crash. 3. The crate will not hit the Camaro, but will crash a distance beyond it determined by the height and speed of the plane.
4. The crate will hit the front part of the car. 003 10.0 points
A ball is thrown horizontally at speed v0 from the top edge of a cliff of height h.
Neglecting air resistance, which statement is wrong?
1. The time it takes for the ball to hit the ground does not depend in any way on v0 .
2. The horizontal distance