Unit 2c Projectile Motion Physics Worksheet Page 13
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29Name________________________________
Date_______
Regents Physics
Mr. Morgante
Projectile Motion Worksheet #3
Analyze each question, underline or circle essential data, sketch the question,
√ check your answers.
______1. A vector makes an angle, θ , with the horizontal.
The horizontal and vertical components of the vector will be equal in
magnitude if angle θ is
(1) 45°
(2) 60°
(3) 75°
(4) 30°
______2. A basketball player jumped straight up to grab a rebound.
If she was in the air for 0.8 second, how high did she jump?
(1) 0.50 m
(2) 0.78 m
(3) 3.1 m
(4) 1.2 m
______3. A ball is thrown at an angle of 38° to the horizontal. What happens to the
magnitude of the ball’s vertical acceleration during the total time interval
the ball is in the air?
(1) It decreases, then increases
(2) It increases, then decreases
(3) It decreases, then remains the same
(4) It remains the same
_______4.A ball thrown vertically upward reaches a maximum height of 30. meters
above the surface of the Earth. At its maximum height, the speed of the ball is
(1) 9.8 m/s
(2) 24 m/s
(3) 3.1 m/s
(4) 0.0 m/s
_______5. A 0.2 kilogram red ball is thrown horizontally at a speed of 4 meters per sec.
from a height of 3 meters. A 0.4 kilogram green ball is thrown horizontally
from the same height at a speed of 8 meters per second. Compared to the time it
takes the red ball to reach the ground, the time it takes the green ball to reach
the ground is
(1) one – half as great (2) twice as great (3) the same (4) four time as great
(OVER)
13
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