A 70 kg box is resting on a reclining floor. The coefficient of friction between the floor and the box is: static = 0.30, kinetic 0.10. 15) If the floor is to be inclined, what would be the minimum angle of inclination needed so that the box will start to slide down? Express your answer in unit of degrees. 16) If the floor is to be inclined at an angle of 10 deg., what is the needed minimum value of force T (applied to the object with a direction opposite to the direction of sliding) to prevent the box from sliding? Express your answer in unit of N. 17) If the floor is to be inclined at an angle of 25 deg., what is the needed minimum value of force T (applied to the object with a direction opposite to the direction of sliding) to prevent the box from sliding? Express your answer in unit of N.
A 70 kg box is resting on a reclining floor. The coefficient of friction between the floor and the box is: static = 0.30, kinetic 0.10. 15) If the floor is to be inclined, what would be the minimum angle of inclination needed so that the box will start to slide down? Express your answer in unit of degrees. 16) If the floor is to be inclined at an angle of 10 deg., what is the needed minimum value of force T (applied to the object with a direction opposite to the direction of sliding) to prevent the box from sliding? Express your answer in unit of N. 17) If the floor is to be inclined at an angle of 25 deg., what is the needed minimum value of force T (applied to the object with a direction opposite to the direction of sliding) to prevent the box from sliding? Express your answer in unit of N.
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter5: Newton's Laws Of Motion
Section: Chapter Questions
Problem 76PQ: Jamal and Dayo are lifting a large chest, weighing 207 lb, by using the two rope handles attached to...
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