1. Which of the following exhibits projectile motion? a. a person diving into a
ID: 1969551 • Letter: 1
Question
1. Which of the following exhibits projectile motion?a. a person diving into a pool from a diving board
b. a space shuttle orbiting the earth
c. a leaf falling from a tree
d. a train moving along a flat track
2. What is the path of a projectile?
a. a wavy line b. a parabola
c. projectiles do not follow a predictable path d. a hyperbola
3. Any object that is thrown or otherwise projected into the air and then travels under the
influence of gravity is called a ___________.
a. trajectory b. projectile
c. velocity d. tangent
4. Which of the following does not exhibit projectile motion?
a. a frog jumping from land into water
b. a basketball thrown to a hoop
c. a baseball thrown to home plate
d. a flat piece of paper released from a window
5. The vertical and horizontal components of motion of a projectile are ____________.
a. independent and dependent of each other
b. independent of each other
c. dependent on each other
d. have nothing to do with motion
6. At the top of a projectile motion, the v
H is:
a. 9.8 m/s2 b. zero
c. same as when it was launched d. increasing
7. The main factor in determining the time that a projectile is in flight is:
a. Dv
b. Vh
c. Dh
d. gravity
8. If a rock is dropped from a height of 5.0 m, how long will it be in the air?
a. 5 s b. 2 s c. .5 s d. 1 s
9. A firefighter stands 50.0 m from a burning building and directs a stream of water at a
30.0
o
angle to the ground at the building. If the water is traveling at 40.0 m/s as it leaves,
how long will it take to get from the fireman to the building?
a. 2.0 s b. .50 s c. 1.44 s d. 1.00 s
10. For the winter, a duck flies 10.0 m/s due south against a gust of wind with a velocity
of 2.5 m/s. What is the resultant velocity of the duck?
a) 12.5 m/s b) -12.5 m/s c) 7.5 m/s d) -7.5 m/s
11. A toy rocket is fired horizontally from a cliff 150. m high at a velocity of 50.0 m/s.
How far from the base of the cliff will the rocket land?
a. 112 m b. 277 m c. 337 m d. 400 m
Explanation / Answer
1. a 2. b 3. b 4. d 5. b 6. b 7. b 8. d
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