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

Scissors crossing, Scissors Crossing: A scissors crossing consists of...

Scissors Crossing: A scissors crossing consists of two crossovers overlapping each other. It is shown in Figure. Figure: Scissors Crossover Triangles

Explain the meaning of a raft foundation, Explain the meaning of A raft fou...

Explain the meaning of A raft foundation A raft foundation, as also combined footing, cannot be considered to be the opposite of a slab supported on the columns with a defined

CAPP, what is MIPLAN system

what is MIPLAN system

Define the basic components of an n.c system, Define the Basic Components o...

Define the Basic Components of an N.C System The basic components of an N.C system are as follow: a) Programmer of Instruction: - It is a set of direction which will tell th

Electrodes- hardfacing electrodes, Hardfacing Electrodes There are many...

Hardfacing Electrodes There are many types of hard facing electrodes. These electrodes are mainly useful in the maintenance and repair of machinery parts and equipments subject

Heat engine - thermodynamics, HEAT ENGINE - Thermodynamics: HE A T ...

HEAT ENGINE - Thermodynamics: HE A T ENGINE. A heat engine is a thermodynamics system that operates in a cycle in which heat can be transferred from heat source to heat si

Bodies stick together after collision the heat liberated, Two bodies of mas...

Two bodies of mass 1 kg and 2 kg move towards each other in mutually perpendicular direction with velocities 3m/s and 2 m/s respectively. If the bodies stick together after collisi

Evaluate an expression for minimum number of teeth, Evaluate an expression ...

Evaluate an expression for minimum number of teeth on the wheel if interference is to be avoided between two mating gears. Also determine the above expression if gear ratio is equa

Explain about unit pipe racks, Q. Explain about Unit pipe racks? Unit p...

Q. Explain about Unit pipe racks? Unit pipe racks are the main arteries carrying the pipes and cables into the units, and as such should be centrally located. They are usually

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