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

Inspection of flange assembly, Q. Inspection of Flange assembly? Flange...

Q. Inspection of Flange assembly? Flanges shall be clean and free of old gasket fragments, scratches, burrs, pits, etc. if needed, the flange surfaces shall be cleaned with a s

Find out the friction force, Find out the friction force: The cord pas...

Find out the friction force: The cord passes over a massless and frictionless pulley, carrying a mass M 1 at one end and wrapped around a cylinder of mass M 2 which rolls on

Welder performance qualifications, WELDER PERFORMANCE QUALIFICATIONS ...

WELDER PERFORMANCE QUALIFICATIONS Requirement of Welder Qualification In performance qualification, the basic attempt is to establish the ability of the welder to dep

Find span of the beam, A beam is simply supported and carries a uniformly d...

A beam is simply supported and carries a uniformly distributed load of 40kn/m run over whole length or span. The section of the beam is rectangular having depth as 500mm. If the s

Gun fires - projectile motion, Gun fires - projectile motion: A gun fi...

Gun fires - projectile motion: A gun fires a projectile along with a muzzle velocity of 300 m/sec as illustrated in Figure. Find its angle of inclination so that it strikes a

Calculate the damping ratio, A second order system defined by Where r(t)...

A second order system defined by Where r(t) is a unit step function. Calculate the damping ratio, damped natural frequency, undamped natural frequency, peak overshoot occurs, ri

Velocity of belt, velocity of belt: velocity of belt passing over the ...

velocity of belt: velocity of belt passing over the driver pulley will decrease Now with this velocity belt pass over driven pulley, Now Velocity of Driven = Velocity

Design data of screw conveyor with auger, DESIGN FACT DATA: ?A) Torque...

DESIGN FACT DATA: ?A) Torque capacity for traction motor of screw conveyor-1660 N-m. ? B) RPM of Traction motor-115 rpm. ? C) Pressure require for operating the telescopi

Strength of material, Draw complete shear and moment diagrams for a 3...

Draw complete shear and moment diagrams for a 3 m long cantilever beam having a uniform distributed load of 2 kN/m along its length.

Show the water treatment unit, The de-oiled water from De-Oiling Unit enter...

The de-oiled water from De-Oiling Unit enters the HLS vessel for softening. The primary function of HLS is to remove the Ca and Mg hardness and bring the total hardness to less tha

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