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 2.3 seconds and hits the ground 34 meters down the field, what was the velocity of the soccer ball when it was kicked?
22.5 m/sec
14.78 m/sec
11.3 m/sec
18.6 m/sec
omit
Question 2
A cannon is fired on flat ground so that its shell comes back to the ground 429 meters away. If the cannon ball is in the air for only 4.6 seconds, with what velocity was it fired?
22.5 m/sec
45.1 m/sec
93.3 m/sec
95.9 m/sec
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Question 3
A softball is struck up into the air with a hang time of 3.2 sec and is caught 11.3 meters away. What was the velocity of the softball just as it was struck by the bat?
3.53 m/sec
16.1 m/sec
36.2 m/sec
31.4 m/sec
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Question 4
A catapult launches its mass at a speed of 38.6 m/sec at an angle of 34 degrees. How long will the mass stay in the air if its release-height and landing-height are the same?
4.41 sec
32.0 sec
2.20 sec
23.8 sec
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Question 5
An arrow is shot up into the air at 19.3 m/sec at an angle of 46 degrees. What is the range of the arrow if its release-height and impact-height are the same?
9.8 meters
13.41 meters
38.0 meters
13.88 meters
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William A. Hilburn
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Mark Acton