A robot pushes a 20-kg box on the horizontal surface as part of the moving job. The force is 300 N to the left shown, and the box is moving. The coefficients of friction between the floor and box are us = 0.75 and uk = 0.40. What is the acceleration of the box, in m/s2? Use g = 10 m/s². (Hint: What are the magnitude and direction of the friction force? Is it static friction or kinetic friction?) Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

A robot pushes a 20-kg box on the horizontal surface as part of the moving job. The force is 300 N to the left shown, and the box is moving. The coefficients of friction between the floor and box are us = 0.75 and uk = 0.40. What is the acceleration of the box, in m/s2? Use g = 10 m/s². (Hint: What are the magnitude and direction of the friction force? Is it static friction or kinetic friction?) Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

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

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 22P: The systems shown in Figure P4.22 are in equilibrium. If the spring scales are calibrated in...

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