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 2.8 seconds and hits the ground 32 meters down the field, what was the velocity of the soccer ball when it was kicked?
17.9 m/sec
13.7 m/sec
27.4 m/sec
11.43 m/sec
omit
Question 2
A cannon is fired on flat ground so that its shell comes back to the ground 444 meters away. If the cannon ball is in the air for only 5.6 seconds, with what velocity was it fired?
79.3 m/sec
54.9 m/sec
27.4 m/sec
83.9 m/sec
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Question 3
A softball is struck up into the air with a hang time of 5.1 sec and is caught 10.7 meters away. What was the velocity of the softball just as it was struck by the bat?
50.0 m/sec
54.6 m/sec
2.10 m/sec
25.1 m/sec
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Question 4
A catapult launches its mass at a speed of 30.8 m/sec at an angle of 32 degrees. How long will the mass stay in the air if its release-height and landing-height are the same?
13.6 sec
26.1 sec
3.33 sec
1.67 sec
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Question 5
An arrow is shot up into the air at 15.4 m/sec at an angle of 49 degrees. What is the range of the arrow if its release-height and impact-height are the same?
24.0 meters
10.10 meters
6.9 meters
11.62 meters
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William A. Hilburn
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Application Programmer
Mark Acton