Two boys are sliding toward each other on a frictionless, ice-covered parking lot. Jacob, mass 45 kg, is gliding to the right at 7.68 m/s, and Ethan, mass 31.0 kg, is gliding to the left at 10.7 m/s along the same line. When they meet, they grab each other and hang on. (a) What is their velocity immediately thereafter? magnitude 0.183 direction right m/s (b) What fraction of their original kinetic energy is still mechanical energy after their collision? 0.041 (c) That was so much fun that the boys repeat the collision with the same original velocities, this time moving along parallel lines 1.12 m apart. At closest approach, they lock arms and start rotating about their common center of mass. Model the boys as particles and their arms as a cord that does not stretch. Find the velocity of their center of mass. magnitude 0.183 right m/s direction (d) Find their angular speed. 15.93 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit

Two boys are sliding toward each other on a frictionless, ice-covered parking lot. Jacob, mass 45 kg, is gliding to the right at 7.68 m/s, and Ethan, mass 31.0 kg, is gliding to the left at 10.7 m/s along the same line. When they meet, they grab each other and hang on. (a) What is their velocity immediately thereafter? magnitude 0.183 direction right m/s (b) What fraction of their original kinetic energy is still mechanical energy after their collision? 0.041 (c) That was so much fun that the boys repeat the collision with the same original velocities, this time moving along parallel lines 1.12 m apart. At closest approach, they lock arms and start rotating about their common center of mass. Model the boys as particles and their arms as a cord that does not stretch. Find the velocity of their center of mass. magnitude 0.183 right m/s direction (d) Find their angular speed. 15.93 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit

Name: Two boys are sliding toward each other on a frictionless, ice-covered
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Description: Two boys are sliding toward each other on a frictionless, ice-covered parking lot. Jacob, mass 45 kg, is gliding to the right at 7.68 m/s, and Ethan, mass 31.0 kg, is gliding to the left at 10.7 m/s alongthe same line. When they meet, they grab each

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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