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 3.5 seconds and hits the ground 23 meters down the field, what was the velocity of the soccer ball when it was kicked?
34.3 m/sec
18.4 m/sec
17.2 m/sec
6.57 m/sec
omit
Question 2
A cannon is fired on flat ground so that its shell comes back to the ground 443 meters away. If the cannon ball is in the air for only 7 seconds, with what velocity was it fired?
34.3 m/sec
72.0 m/sec
63.3 m/sec
68.6 m/sec
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Question 3
A softball is struck up into the air with a hang time of 3.7 sec and is caught 7.7 meters away. What was the velocity of the softball just as it was struck by the bat?
36.3 m/sec
28.5 m/sec
18.2 m/sec
2.08 m/sec
omit
Question 4
A catapult launches its mass at a speed of 32.1 m/sec at an angle of 23 degrees. How long will the mass stay in the air if its release-height and landing-height are the same?
29.5 sec
2.56 sec
1.28 sec
8.0 sec
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Question 5
An arrow is shot up into the air at 16.1 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?
11.55 meters
11.15 meters
6.3 meters
26.3 meters
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William A. Hilburn
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Application Programmer
Mark Acton