A ball is kicked vertically upward. It passes a speed gun placed 8 meters above the ground. The speed gun reads 4.8 m/s as it goes up. Ignore air resistance. 1. How high does the ball go before going back to the ground? 2. How long does it take to go from a height of 8.0 meters to its maximum vertical displacement? 3. What is the takeoff speed of the ball?

College Physics
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Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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A ball is kicked vertically upward. It passes a speed gun placed 8 meters above the ground. The speed gun
reads 4.8 m/s as it goes up. Ignore air resistance.
1. How high does the ball go before going back to the ground?
2. How long does it take to go from a height of 8.0 meters to its maximum vertical displacement?
3. What is the takeoff speed of the ball?
4. How long is the ball in the air?
5. Suppose the ball is kicked with an initial velocity similar to its takeoff speed from question 3 but is
projected at an angle of 38° above the horizontal. (a) How far can it reach? (b) How high can it reach? (c)
How much time will it take to go back to the ground?
Transcribed Image Text:A ball is kicked vertically upward. It passes a speed gun placed 8 meters above the ground. The speed gun reads 4.8 m/s as it goes up. Ignore air resistance. 1. How high does the ball go before going back to the ground? 2. How long does it take to go from a height of 8.0 meters to its maximum vertical displacement? 3. What is the takeoff speed of the ball? 4. How long is the ball in the air? 5. Suppose the ball is kicked with an initial velocity similar to its takeoff speed from question 3 but is projected at an angle of 38° above the horizontal. (a) How far can it reach? (b) How high can it reach? (c) How much time will it take to go back to the ground?
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