PROBLEM 7: In the figure, µ = 0.30 for the contact of the 80-kg crate and the ground. Pulleys are frictionless. (a) determine the value of 0 to move the crate (b) Determine the tensile force (in N) in the rope attached to the crate to move the crate. (c) Determine the smallest force (in N) the man must exert on the rope to move the crate. 30°/ 45°

International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter7: Dry Friction
Section: Chapter Questions
Problem 7.50P: The block of weight W is pulled by the force P inclined at the angle to the horizontal. Find the...
Question
PROBLEM 7: In the figure, µ = 0.30 for the contact of the 80-kg crate and the
ground. Pulleys are frictionless. (a) determine the value of 0 to move the crate
(b) Determine the tensile force (in N) in the rope attached to the crate to move
the crate. (c) Determine the smallest force (in N) the man must exert on the
rope to move the crate.
30°/
45°
Transcribed Image Text:PROBLEM 7: In the figure, µ = 0.30 for the contact of the 80-kg crate and the ground. Pulleys are frictionless. (a) determine the value of 0 to move the crate (b) Determine the tensile force (in N) in the rope attached to the crate to move the crate. (c) Determine the smallest force (in N) the man must exert on the rope to move the crate. 30°/ 45°
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