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 4 seconds and hits the ground 35 meters down the field, what was the velocity of the soccer ball when it was kicked?
21.5 m/sec
19.6 m/sec
8.75 m/sec
39.2 m/sec
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Question 2
A cannon is fired on flat ground so that its shell comes back to the ground 456 meters away. If the cannon ball is in the air for only 8 seconds, with what velocity was it fired?
57.0 m/sec
39.2 m/sec
78.4 m/sec
69.2 m/sec
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Question 3
A softball is struck up into the air with a hang time of 4.3 sec and is caught 11.7 meters away. What was the velocity of the softball just as it was struck by the bat?
42.1 m/sec
2.72 m/sec
21.2 m/sec
50.3 m/sec
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Question 4
A catapult launches its mass at a speed of 30.3 m/sec at an angle of 35 degrees. How long will the mass stay in the air if its release-height and landing-height are the same?
15.4 sec
1.77 sec
24.8 sec
3.55 sec
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Question 5
An arrow is shot up into the air at 15.2 m/sec at an angle of 41 degrees. What is the range of the arrow if its release-height and impact-height are the same?
23.2 meters
11.43 meters
9.94 meters
5.0 meters
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William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton