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

Describe vortex flow, Describe vortex flow and derive mathmetical equation ...

Describe vortex flow and derive mathmetical equation Z= w 2 r 2 /2g for forced vertex flow ω= angular velocity z= height of parabola r= radius of parabola

Define edge joints, Edge joints: The flanged edge joint is suit- able for p...

Edge joints: The flanged edge joint is suit- able for plate 1/4 inch or less in thickness and can only sustain light loads. Edge preparation for this joint may be done.

Measurement in production system, Measurement in Production System: Th...

Measurement in Production System: This unit explain the performance measurement in an organisation. More than just a passive means for assessing what has already occurred, the

Find out change in length of circular bar, Find out change in length of cir...

Find out change in length of circular bar of uniform taper Sol.: The stress at any cross section can be found by dividing load by area of cross section and extension can be

Calculate density of completely dry oak, The density of a sample of oak is ...

The density of a sample of oak is 0.90 g/cm^3. Calculate             a. the density of completely dry oak             b. the percent water in the original sample

Calculate the greatest stress - plate, Calculate the greatest stress - plat...

Calculate the greatest stress - plate: A rectangular plate 10 mm thick within a hole of 50 mm diameter drilled on this is as shown in Figure 10. This is subjected to axial pul

Show drain systems used in plant, Q. Show drain systems used in plant? ...

Q. Show drain systems used in plant? Process/power plants usually have a variety of different drain systems to collect the different types of liquid effluent. One of these is u

What is the spindle and drill, What is the spindle and drill The spindl...

What is the spindle and drill The spindle and drill head assembly the taper hole can be create on radial drilling machine with some special attachment likewise quill(The spindl

Necessity of battery , Necessity of Battery To obtain power for ig...

Necessity of Battery To obtain power for ignition system. To obtain power for lighting. To obtain power for horn. To obtain power for self-starting.

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