Work-power-energy, Mechanical Engineering

Assignment Help:

 

Under the action of constant force, a 2kg block moves such that its position x as a function of time is given by X=t^3/3 ,where x in meters and t in sec , the workdone by force in first 2 seconds is

A 26.6 j

B 3.3 j

C 16 j

D 32 j

Solution) v=dx/dt=t^2,a=dv/dt=2t,f(t)=ma(t),w=∫f(t)*v(t) dt (from x=0 to x=2 sec)


Related Discussions:- Work-power-energy

What is two way punching shear, What is Two Way Punching Shear? Two Way...

What is Two Way Punching Shear? Two Way Punching Shear In columns, generally the tendency of the column is to punch through the footing.  This also is to be considered in de

How are the refrigerants classified, How are the refrigerants classified? D...

How are the refrigerants classified? Describe the desirable property of a good refrigerant. Explain in brief the thermodynamics, safe and physical working property of an ideal r

Types of brake , Types of Brake The brakes used in motorcycles can be ...

Types of Brake The brakes used in motorcycles can be classified as follows: (a) Drum Brake (b) Disc Brake

Describe split pattern or two piece pattern, Split pattern or two piece pat...

Split pattern or two piece pattern This is the most widely used type of pattern for intricate castings. When the contour of the casting make sits withdrawal from the mould diff

Mechanical design calculations, Q. Mechanical Design Calculations? The ...

Q. Mechanical Design Calculations? The Mechanical Design Engineer/Specialist shall be responsible for mechanical design calculations that are required to ensure that the end pr

Process planning, we have to design crane we did already with calculation r...

we have to design crane we did already with calculation remaining is process planning

Priority rules-conventional priority rules, Priority Rules A main conce...

Priority Rules A main concern rule is an algorithm that evaluates a priority number PN j for all operation j which enters the queue in front of a station (processing, cell, wo

Idle circuit of motorcycle, Idle Circuit : During Idling while the th...

Idle Circuit : During Idling while the throttle valve is almost closed the vacuum is very high at Venturi area and no air-fuel mixture is drawn through the main circuit, as t

Enumerate about the loading conditions, Loading Conditions Non-uniformi...

Loading Conditions Non-uniformity of loading has to be considered in the choice of foundations particularly in highly compressible soils. It is not uncommon for buildings with

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