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

Gears, What is the working depth of a gear

What is the working depth of a gear

Explain the use of bare electrode, Q. Explain the use of bare electrode? ...

Q. Explain the use of bare electrode? This type of electrode is also known as plain electrode. No flux covers on this electrode. These types of electrodes are used for D.C. sup

Governor, Use of hartung governor

Use of hartung governor

Thermodynamics, Show that heat is a path path function and not a property...

Show that heat is a path path function and not a property of system

Process selection in making a simple part, Process Selection in Making a Si...

Process Selection in Making a Simple Part You should first determine the part's function, the types of load and environment to which it would be subjected, the dimensional to

Define myocardial oxygen uptake, Q. What do you understand by Myocardial Ox...

Q. What do you understand by Myocardial Oxygen Uptake? VO 2 max = Maximum C.O x Maximum A-V Oxygen difference. It is the maximum amount of oxygen that the person can use du

Reaction bonding-manufacturing methods of ceramics, Reaction Bonding S...

Reaction Bonding Such bonding is attained by arranging for two or more components of a compacted body to respond to form both a desired phase and a bond among particles. The r

Explain the construction and working of a differential, (a) What are the di...

(a) What are the different types of clutches used in modern automobiles? With the help of neat and clean diagram describe the functioning of a diaphragmspring clutch. (b) Explai

Pseudo force, why we feel increase in weight when elevator goes up?

why we feel increase in weight when elevator goes up?

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