Practice Problems
Projectiles Released from Ground Level at an Angle
Directions:
On this worksheet, every projectile has a net vertical displacement of s
_{y}
= 0. That is, the projectiles begin and end at the same height.
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Question 1
A soccer ball is kicked so that is has a hang time of 2 seconds and hits the ground 24 meters down the field, what was the velocity of the soccer ball when it was kicked?
15.5 m/sec
12.00 m/sec
9.8 m/sec
19.6 m/sec
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Question 2
A cannon is fired on flat ground so that its shell comes back to the ground 422 meters away. If the cannon ball is in the air for only 4 seconds, with what velocity was it fired?
39.2 m/sec
19.6 m/sec
107.3 m/sec
105.5 m/sec
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Question 3
A softball is struck up into the air with a hang time of 4.1 sec and is caught 8 meters away. What was the velocity of the softball just as it was struck by the bat?
40.2 m/sec
20.2 m/sec
1.95 m/sec
32.8 m/sec
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Question 4
A catapult launches its mass at a speed of 33 m/sec at an angle of 24 degrees. How long will the mass stay in the air if its release-height and landing-height are the same?
1.37 sec
30.1 sec
2.74 sec
9.2 sec
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Question 5
An arrow is shot up into the air at 16.5 m/sec at an angle of 44 degrees. What is the range of the arrow if its release-height and impact-height are the same?
27.8 meters
6.7 meters
11.46 meters
11.87 meters
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William A. Hilburn
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Mark Acton