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.
omit
Question 1
A soccer ball is kicked so that is has a hang time of 3.1 seconds and hits the ground 31 meters down the field, what was the velocity of the soccer ball when it was kicked?
18.2 m/sec
10.00 m/sec
15.2 m/sec
30.4 m/sec
omit
Question 2
A cannon is fired on flat ground so that its shell comes back to the ground 417 meters away. If the cannon ball is in the air for only 6.2 seconds, with what velocity was it fired?
67.3 m/sec
73.8 m/sec
60.8 m/sec
30.4 m/sec
omit
Question 3
A softball is struck up into the air with a hang time of 6 sec and is caught 10.3 meters away. What was the velocity of the softball just as it was struck by the bat?
29.5 m/sec
58.8 m/sec
1.72 m/sec
61.8 m/sec
omit
Question 4
A catapult launches its mass at a speed of 38.1 m/sec at an angle of 31 degrees. How long will the mass stay in the air if its release-height and landing-height are the same?
19.6 sec
4.00 sec
32.7 sec
2.00 sec
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Question 5
An arrow is shot up into the air at 19.1 m/sec at an angle of 38 degrees. What is the range of the arrow if its release-height and impact-height are the same?
15.01 meters
11.73 meters
35.9 meters
7.0 meters
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William A. Hilburn
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