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 4.3 seconds and hits the ground 24 meters down the field, what was the velocity of the soccer ball when it was kicked?
5.58 m/sec
21.8 m/sec
42.1 m/sec
21.1 m/sec
omit
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 8.6 seconds, with what velocity was it fired?
84.3 m/sec
67.7 m/sec
53.0 m/sec
42.1 m/sec
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Question 3
A softball is struck up into the air with a hang time of 3.4 sec and is caught 8 meters away. What was the velocity of the softball just as it was struck by the bat?
27.2 m/sec
33.3 m/sec
16.8 m/sec
2.35 m/sec
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Question 4
A catapult launches its mass at a speed of 34.4 m/sec at an angle of 24 degrees. How long will the mass stay in the air if its release-height and landing-height are the same?
1.43 sec
31.4 sec
10.0 sec
2.86 sec
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Question 5
An arrow is shot up into the air at 17.2 m/sec at an angle of 50 degrees. What is the range of the arrow if its release-height and impact-height are the same?
29.7 meters
13.18 meters
8.9 meters
11.06 meters
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William A. Hilburn
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Application Programmer
Mark Acton