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Physics
11th -
12thgrade
4C: Projectiles launched horizontally & Circular Motion
9 questions
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- 1. Multiple Choice
Person runs off a cliff that is 30 m high at 5 m/s. How far from the base of the cliff did the diver land (horizontal displacement)? Work to the 2nd decimal place.
30.00 m
150.00 m
12.35 m
6.12 m
- 2. Multiple Choice
The diagram below which shows a ball projected horizontally with an initial velocity of 20. meters per second east, off a cliff 100. meters high. [Neglect air resistance.]
How many seconds does the ball take to reach the ground?
2.0 s
20.0 s
9.8 s
4.5 s
- 3. Multiple Choice
The diagram below which shows a ball projected horizontally with an initial velocity of 20. meters per second east, off a cliff 100. meters high. [Neglect air resistance.]
During the flight of the ball, what is the direction of its acceleration?
westward
downward
upward
eastward
- 4. Multiple Choice
A book is pushed with an initial horizontal velocity of 5.0 meters per second off the top of a desk. What is the initial vertical velocity of the book?
2.5 m/s
1.0m/s
0 m/s
5.0 m/s
- 5. Multiple Choice
A stone thrown from the top of a tall building follows a path that is
circular
hyperbolic
parabolic
made of two straight line segments
- 6. Multiple Choice
A bullet shot horizontally from a gun
strikes the ground much later than one dropped from the same point at the same instant
never strikes the ground
strikes the ground at approximately the same time as one dropped vertically from the same point at the same instant
strikes the ground much sooner than one dropped vertically form the same point at the same instant
- 7. Multiple Choice
The vertical velocity of a projectile in the air with no air resistance
never changes
become a circle
changes over time
- 8. Multiple Choice
A ball at the end of a string is being swung in a horizontal circle. What is the direction of the acceleration of the ball?
Tangent to the circle, in the direction of the ball's motion
Toward the center of the circle
- 9. Multiple Choice
A ball at the end of a string is being swung in a horizontal circle. What is the direction of the net force on the ball?
Tangent to the circle
Toward the center of the circle
There is no net force
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