A 5-kg wooden block sits on top of a fixed incline oriented at an angle 0=30°. The coefficients of friction between the block and the incline are Hz= 0.60 and µk = 0.30. The block is being pulled up the incline by a cable tugged at the other end with force P = 60 N as shown. At the instant shown, the block is sliding up the incline and the normal force exerted by the incline on the block is equal to 42.5 N.

Glencoe Physics: Principles and Problems, Student Edition
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ISBN:9780078807213
Author:Paul W. Zitzewitz
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Chapter5: Displacement And Force In Two Dimensions
Section: Chapter Questions
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A 5-kg wooden block sits on top of a fixed incline oriented at an angle 0=30°. The coefficients of friction between the block and the incline are
Ps= 0.60 and Hk = 0.30. The block is being pulled up the incline by a cable tugged at the other end with force P = 60 N as shown.
At the instant shown, the block is sliding up the incline and the normal force exerted by the incline on the block is equal to 42.5 N.
P
m=5kg
3. Which of the following is closest to the magnitude of the component of the weight parallel to the incline?
A. 2.50 N
В. 42.5 N
C. 24.5 N
А.
С.
D. 49.0 N
Transcribed Image Text:A 5-kg wooden block sits on top of a fixed incline oriented at an angle 0=30°. The coefficients of friction between the block and the incline are Ps= 0.60 and Hk = 0.30. The block is being pulled up the incline by a cable tugged at the other end with force P = 60 N as shown. At the instant shown, the block is sliding up the incline and the normal force exerted by the incline on the block is equal to 42.5 N. P m=5kg 3. Which of the following is closest to the magnitude of the component of the weight parallel to the incline? A. 2.50 N В. 42.5 N C. 24.5 N А. С. D. 49.0 N
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