A pulley and a rope is used to lower a body of mass m kg down and man holds down the other end of the rope as shown in Fig.2. What is the force that is required to prevent the downward movement of the mass? Clearly show the Free Body Diagram in the solution.

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...
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a. A pulley and a rope is used to lower a body of mass m kg down and man
holds down the other end of the rope as shown in Fig.2. What is the force
that is required to prevent the downward movement of the mass? Clearly
show the Free Body Diagram in the solution.
b. Explain the Newton's three laws of motion which forms the basis for
formulation of Engineering Mechanics. State an example for each of the
three laws in your own words.
Fig.2
Transcribed Image Text:a. A pulley and a rope is used to lower a body of mass m kg down and man holds down the other end of the rope as shown in Fig.2. What is the force that is required to prevent the downward movement of the mass? Clearly show the Free Body Diagram in the solution. b. Explain the Newton's three laws of motion which forms the basis for formulation of Engineering Mechanics. State an example for each of the three laws in your own words. Fig.2
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