Total tension in cable of the elevator, Mechanical Engineering

Assignment Help:

Total tension in cable of the elevator:

An elevator having weight 5000N is ascending with an acceleration of 3m/sec2. During this ascent its operator which is having weight 700N is standing on the scale placed on floor. What is scale reading? What will be total tension in cable of the elevator during this motion?

Sol: Given, WE  = 5000N, a = 3m/sec2, WO  = 700N,

Let R = Reaction offered by the floor on operator. This is equal to the reading of scale.

T = total tension in cable

 

1620_Total tension in cable of the elevator.png

Net upward force on operator

= R eaction offered by the floor on operator - Weight of operator

= R - 700

Net force = ma

R - 700 = (700/9.81)X 3

R = 914.28N                                                                      .......ANS

Now for finding total tension in cable, Total weight of elevator is considered.

Net upward force on the elevator and operator

= Total tension in cable - Total weight of elevator and operator

= T - 5700

But net force = mass X acceleration

T - 5700 = (5700/9.81) X 3

T = 7445N                                                         .......ANS


Related Discussions:- Total tension in cable of the elevator

Cylinder bore-engine terminology , Cylinder Bore: The nominal inner diame...

Cylinder Bore: The nominal inner diameter of the working cylinder is called the cylinder bore and is designated by the letter D and is usually expressed in millimetre (mm).

Calculate the tension t in the rope, Calculate the tension T in the rope: ...

Calculate the tension T in the rope: Q: A man raises 10 Kg joist of length 4m by pulling on rope, Find out the tension T in the rope and reaction at point A for the posit

Mechanics of solids, What is Principle of superposition (Uniform cross-sect...

What is Principle of superposition (Uniform cross-section s/t multiple loads)

First law of thermodynamics, First law of thermodynamics: The First La...

First law of thermodynamics: The First Law of Thermodynamics states that work and heat are equally convertible. The present tendency is to include all the forms of energy. The

Describe crank-pin effort, Describe the following terms:- a) Gyroscope ...

Describe the following terms:- a) Gyroscope b) Crank-pin effort c) Piston Effort d) Crank effort e) Thrust on crank shaft bearings.  f) Brake and Dynamometer g

Illustrate the babcock and wilcox boiler, How the boiler are classified? Sk...

How the boiler are classified? Sketch and define the babcock & Wilcox boiler and also Compare the water tube boiler and fire tube?

Illustrates the effect of wall movement on earth pressure, Illustrates abou...

Illustrates about the effect of wall movement on earth pressure? Effect of wall movement on earth pressure About fifty years ago Terzaghi conducted a series of tests on larg

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