A7.8 kg block witha speed of 5.7 m/s collides with a 15.6 kg block that has a speed of 3.8 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 4.8 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 7.6 m/s. What then is the change in the total kinetic energy? (a) Number Units (b) Number Units (c) Number Units
A7.8 kg block witha speed of 5.7 m/s collides with a 15.6 kg block that has a speed of 3.8 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 4.8 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 7.6 m/s. What then is the change in the total kinetic energy? (a) Number Units (b) Number Units (c) Number 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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Transcribed Image Text:A7.8 kg block with a speed of 5.7 m/s collides with a 15.6 kg block that has a speed of 3.8 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 4.8 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 7.6 m/s. What then is the change in the total kinetic
energy?
(a) Number
i
Units
(b) Number
Units
(c) Number
i
Units
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