A7.8 kg block witha speed of 5.4 m/s collides with a 15.6 kg block that has a speed of 3.6 m/s in the same direction. After the collision, the 15.6 kg block is observed to be traveling in the original direction with a speed of 4.5 m/s. (a) What is the velocity of the 7.8 kg block immediately after the collision? (b) By how much does the total kinetic energy of the system of two blocks change because of the collision? (c) Suppose, instead, that the 15.6 kg block ends up with a speed of 7.2 m/s. What then is the change in the total kinetic energy? (a) Number i Units (b) Number i Units (c) Number i Units

A7.8 kg block witha speed of 5.4 m/s collides with a 15.6 kg block that has a speed of 3.6 m/s in the same direction. After the collision, the 15.6 kg block is observed to be traveling in the original direction with a speed of 4.5 m/s. (a) What is the velocity of the 7.8 kg block immediately after the collision? (b) By how much does the total kinetic energy of the system of two blocks change because of the collision? (c) Suppose, instead, that the 15.6 kg block ends up with a speed of 7.2 m/s. What then is the change in the total kinetic energy? (a) Number i Units (b) Number i Units (c) Number i Units

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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