A 5.00-kg box is initially at rest on a level surface. The coefficient of static friction between the box and the surface is 0.400. Let g=10m/s/s, and all answers be in newtons. a) Calculate the maximum force you can apply before the box starts to move, if the force is directed at an angle of 30 degrees from the horizontal, with the vertical component downward. _______ N answer: 30N (solve step by step) b) Calculate the maximum force you can apply before the box starts to move, if the force is directed at an angle of 30 degrees from the horizontal, with the vertical component upward. _______ N (answer: 18.7, solve step by step)
A 5.00-kg box is initially at rest on a level surface. The coefficient of static friction between the box and the surface is 0.400. Let g=10m/s/s, and all answers be in newtons. a) Calculate the maximum force you can apply before the box starts to move, if the force is directed at an angle of 30 degrees from the horizontal, with the vertical component downward. _______ N answer: 30N (solve step by step) b) Calculate the maximum force you can apply before the box starts to move, if the force is directed at an angle of 30 degrees from the horizontal, with the vertical component upward. _______ N (answer: 18.7, solve step by step)
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter5: Displacement And Force In Two Dimensions
Section: Chapter Questions
Problem 80A
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A 5.00-kg box is initially at rest on a level surface. The coefficient of static friction between the box and the surface is 0.400. Let g=10m/s/s, and all answers be in newtons.
a) Calculate the maximum force you can apply before the box starts to move, if the force is directed at an angle of 30 degrees from the horizontal, with the vertical component downward.
_______ N
answer: 30N (solve step by step)
b) Calculate the maximum force you can apply before the box starts to move, if the force is directed at an angle of 30 degrees from the horizontal, with the vertical component upward.
_______ N
(answer: 18.7, solve step by step)
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