College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Ball shot into sand. A steel ball with mass m = 5.2 g is fired vertically downward from a height h₁ of 18 m with an initial speed vo of 14 m/s. It buries itself in sand to a depth h₂ of 21 cm. (a) What is the change in the mechanical energy of the ball? (b) What is the change in the internal energy of the ball-Earth-sand system? (c) What is the magnitude Fave of the average force on the ball from the sand?
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Transcribed Image Text:Ball shot into sand. A steel ball with mass m = 5.2 g is fired vertically downward from a height h₁ of 18 m with an initial speed vo of 14 m/s. It buries itself in sand to a depth h₂ of 21 cm. (a) What is the change in the mechanical energy of the ball? (b) What is the change in the internal energy of the ball-Earth-sand system? (c) What is the magnitude Fave of the average force on the ball from the sand?
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