Force required to start the roller, Mechanical Engineering

Assignment Help:

Force required to start the roller:

A roller shown in the figure given below is of mass 150Kg. What force T is required to start the roller over block A?

Sol.: Let R be reaction given by block to the roller, and is to act at point A subtends an angle of ? as shown in the figure given below,

For finding angle θ  ,

Sin θ  = 75/175 = 0.428

= 25.37°

Apply lami's theorem at 'A', as the body is in equilibrium

T/sin(90° + 25.37°) = 150 × g/ sin(64.63° + 65°)

T = [150 × g × sin(90° + 25.37°)]/ sin(64.63° + 65°)

T = 1726.33N

 

854_Force required to start the roller.png

 


Related Discussions:- Force required to start the roller

Mechanism and machine, define frame of a machine. which link of the machine...

define frame of a machine. which link of the machine is known as frame?

Engineering plastics, Engineering Plastics In this time this has becom...

Engineering Plastics In this time this has become clear to know, the plastics are utilized as engineering materials for machine parts, casting and bodies and for structure mai

Normal and standard temperature pressure - stp ntp, Norma l Temperature an...

Norma l Temperature and Pressure (N.T.P.): The conditions of temperature and pressure at 0°C (273K) and 760 mm of Hg respectively are called normal temperature and pressure (

Introduction to welding processes, Welding is a material joining process us...

Welding is a material joining process used in making welds and a weld is a localised coalescence of metals or non metals produced either by heating the materials to suitable temper

Hodgkin-huxley fast subsystem, Hodgkin-Huxley Fast Subsystem 1. Explai...

Hodgkin-Huxley Fast Subsystem 1. Explain why replacing the extracellular Na + with choline has little effect on the resting potential of an axon. Calculate the new resting po

Standard for steel pipes, Q. Standard for steel pipes? Vendor shall mee...

Q. Standard for steel pipes? Vendor shall meet or exceed the requirements of the latest edition of the following codes, regulations, and standards except as superseded herein.

Cost of processing the payroll, The processing of payroll for the 10,000 wo...

The processing of payroll for the 10,000 workers in a large rm can either be done using 1 hour of computer time (signed by K) and no clerks or with 10 hours of clerical time (sign

Explain the side relief angle, Explain the Side Relief Angle It is angl...

Explain the Side Relief Angle It is angle made by flank of a tool and plane perpendicular to base just under the side cutting edge. if the side relief angle is very large the c

Torsion of cylinder and torsion rigidity, I want complete information about...

I want complete information about the topic torsion of cylinder and torsion rigidity.if I have to make a project on this topic then how should I make it. Please help me sir.

Determine the value of maximum bending moment, Determine the value of maxim...

Determine the value of maximum bending moment: Draw the shear force & bending moment diagrams for the beam overhanging on both of sides as illustrated in Figure. Determine the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd