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

Heat - thermodynamics, He a t: Sol: Heat can be energy transferred...

He a t: Sol: Heat can be energy transferred across the boundary of a system because of temperature difference between system and surrounding. The heat is transferred by th

Compute the ratio of the torque, Compute the ratio of the torque: Comp...

Compute the ratio of the torque: Compute the ratio of the torque transmitted by a hollow & a solid shaft of the similar material, length & weight. Solution d i = inte

What is auto-ignition temperature, Q. What is Auto-Ignition Temperature? ...

Q. What is Auto-Ignition Temperature? Auto-Ignition Temperature (AIT) - The auto-ignition temperature is the temperature at which a product will burn without application of any

Evaluate the motion of the system, Evaluate the motion of the system: ...

Evaluate the motion of the system: If in above Example, the block A is resting on an inclined plane at 45 o to horizontal as illustrative in Figure, find out the motion of th

Can you explain investment casting, Q. Can you explain Investment casting? ...

Q. Can you explain Investment casting? -Investment casting produces very high surface quality and dimensional accuracy. -Investment casting is commonly used for precision eq

Metals and Melting practices - alloy, Metals and Melting Practices - Alloy,...

Metals and Melting Practices - Alloy,Blowing,Carbon Monoxide Normal 0 false false false EN-IN X-NONE X-NONE Microsoft

Define jigs and fixtures, Define Jigs and Fixtures Jigs: A jig is a...

Define Jigs and Fixtures Jigs: A jig is a device in which a component is held and located for specified operations in such a way that it will guide one or more cutting tool

Maximum Shear Stress theory , A steel plate with dimension shown in sketch ...

A steel plate with dimension shown in sketch (a) below is subjected to P = 150 kN tensile force and M= 300 N-m bending moment. The plate is made of AISI 1080 steel. A hole is to be

Motion/movement, What are the different types of Mechanical Motions/Movemen...

What are the different types of Mechanical Motions/Movements?

Air filter cleaning steps, Air Filter Cleaning :  Air filter filters the a...

Air Filter Cleaning :  Air filter filters the air, which enters into the carburetor. Then, this air mixes with fuel and this mixture enters into engine. If air is not clean, it wi

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