![subject](/tpl/images/cats/fizika.png)
Question 1 (1 point)
saved
the path a projectile takes is known as the
question 1 options:
vertical component
trajectory
horizontal component
parabola
question 2 (1 point)
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which of the following is not an example of a projectile?
question 2 options:
a baseball that has been pitched
a rock being thrown over a bridge
a person sitting in a chair, not moving
a car driving off a cliff
question 3 (1 point)
saved
a plane is flying east when it drops some supplies to a designated target below. the supplies land after falling for 10 seconds. how high above the ground was the airplane when the supplies were dropped? (hint: d = 1/2gt2; g = -9.8 m/s2)
question 3 options:
120 meters
490 meters
980 meters
49 meters
question 4 (1 point)
as the supplies fell, they traveled 650 meters horizontally. how fast were the supplies and the airplane moving forward? remember that it took 10 seconds for them to reach the ground. (hint: v = d/t)
question 4 options:
65 m/s
6500 m/s
0.154 m/s
660 m/s
question 5 (1 point)
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a projectile has a vertical component and a horizontal component.
question 5 options:
true
false
question 6 (1 point)
saved
the shape of a projectile's trajectory is an ellipse.
question 6 options:
true
false
question 7 (1 point)
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which of the following is not true about a vertical component?
question 7 options:
the vertical component of a projectile changes due to gravity.
the vertical component acts the same as an object in free fall.
the vertical component always equals the horizontal component.
question 8 (1 point)
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during the course of trajectory, the horizontal component of the velocity is
question 8 options:
constant
increasing
decreasing
negative
question 9 (1 point)
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in the simulation above, as the projectile travels upward, how does the vertical velocity change?
question 9 options:
vertical velocity remains the same.
vertical velocity decreases.
vertical velocity increases.
vertical velocity is zero.
question 10 (1 point)
in the simulation above, as the projectile travels downward, how does the vertical velocity change?
question 10 options:
vertical velocity remains the same.
vertical velocity decreases.
vertical velocity is zero.
vertical velocity increases.
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Answers: 3
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Question 1 (1 point)
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the path a projectile takes is known as the
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the path a projectile takes is known as the
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