A 2.00-kg object has a velocity (6.20 1 - 1.80 ĵ) m/s. (Note: From the definition of the dot product, v² = v · V.) (a) What is its kinetic energy at this moment? 61.88 The kinetic energy depends on the speed, which is the magnitude of the velocity vector. J (b) Find the net work done on the object if its velocity changes to (8.00 î+ 4.00 ĵ) m/s. 50.12 How is the work done by the net force related to the change in kinetic energy? J
A 2.00-kg object has a velocity (6.20 1 - 1.80 ĵ) m/s. (Note: From the definition of the dot product, v² = v · V.) (a) What is its kinetic energy at this moment? 61.88 The kinetic energy depends on the speed, which is the magnitude of the velocity vector. J (b) Find the net work done on the object if its velocity changes to (8.00 î+ 4.00 ĵ) m/s. 50.12 How is the work done by the net force related to the change in kinetic energy? J
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter6: Energy Of A System
Section: Chapter Questions
Problem 8OQ: If the net work done by external forces on a particle is zero, which of the following statements...
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