3.1-03 Finding the Coefficient of Friction from the Work-Kinetic Energy Theorem

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Unit 3 Sections 1 2 Question 7

In this video we apply the work-kinetic energy theorem to explore the effect of friction on a sliding box, from the instant it shows a positive velocity to the instant it comes to rest. Pay attention to the quick application of the laws of motion.
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the answer is B. it is important to use always a free body diagram.

danielapinto
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We can get to the answer in two different ways: One, through the use of one of the kinematics equations and Newton's second law, or the work and kinetic energy theorem. The correct answer is letter B.

danielabuenaventura
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The correct answer is b knowing that the change in the kinetic energy is the work

nataliaacuna