In soccer, sometimes a goalkeeper cannot catch the ball so she simply knocks it away with her hand. In the photo above, Katarzyna Kiedrzynek punched a soccer ball with her fist. The ball came toward her (to the left and downward) with an initial speed of vj = 23 m/s, directed at an angle of theta = 0 = 25 degrees below horizontal (as shown in the middle diagram above). The ball went away from her fist (to the right and upward) with a speed of vf = 13 m/s, directed at an angle of phi = p = 63 degrees above horizontal (as shown in the diagram on the right above). The ball has a mass of 0.44 kg. The ball was in contact with Katarzyna's fist for a period of 0.14 seconds. During the short time that the ball was in contact with Katarzyna's hand, the only significant forces were the forces that the ball and her hand exerted on each other. Ignore other forces such as gravity and air resistance for this problem. Calculate the average force (in units of newtons) that Katarzyna exerted on the ball during those 0.14 seconds.

In soccer, sometimes a goalkeeper cannot catch the ball so she simply knocks it away with her hand. In the photo above, Katarzyna Kiedrzynek punched a soccer ball with her fist. The ball came toward her (to the left and downward) with an initial speed of vj = 23 m/s, directed at an angle of theta = 0 = 25 degrees below horizontal (as shown in the middle diagram above). The ball went away from her fist (to the right and upward) with a speed of vf = 13 m/s, directed at an angle of phi = p = 63 degrees above horizontal (as shown in the diagram on the right above). The ball has a mass of 0.44 kg. The ball was in contact with Katarzyna's fist for a period of 0.14 seconds. During the short time that the ball was in contact with Katarzyna's hand, the only significant forces were the forces that the ball and her hand exerted on each other. Ignore other forces such as gravity and air resistance for this problem. Calculate the average force (in units of newtons) that Katarzyna exerted on the ball during those 0.14 seconds.

Name: ViIn soccer, sometimes a goalkeeper cannot catch the ball so she simp
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Description: ViIn soccer, sometimes a goalkeeper cannot catch the ball so she simply knocks it away with her hand. In the photo above, Katarzyna Kiedrzynek punched asoccer ball with her fist.The ball came toward her (to the left and downward) with an initial spe

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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