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

Want settle down where sheet metal engeniers are requiered, #question.want ...

#question.want settle down where sheet metal engineers are required.

Explain the height adjustment and extension of augers, Normal 0 ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Bicycle frame design, You are required to design the central section of the...

You are required to design the central section of the bicycle frame which consists of the seat tube, top tube, down tube and head tube. You can ignore the seat stays, chain stays a

Calculate pressure - temperature at all points of the cycle, An aircraft mo...

An aircraft moving with speed of 1200 Km/hr, uses simple air refrigeration cycle for air conditioning. The ambient temperature and pressure are 0.35 bar and - 10 o C respectively.

Series spot welding, Series Spot Welding In series welding, a portion o...

Series Spot Welding In series welding, a portion of the secondary current by passes any weld nugget being formed. And This shunt current passes through one of the panels being

Explain milling fixture, Explain Milling Fixture? A milling fixture...

Explain Milling Fixture? A milling fixture is a work holding device which is firmly clamped to the table of milling machine. It holds the work piece in correct position as

Varignon, how should we consider positive or negative when summation of for...

how should we consider positive or negative when summation of forces

Design approach of human mobility device, In ME1, you are beginning to deve...

In ME1, you are beginning to develop knowledge of design, materials, and basic machine elements (e.g., power screws, bolted joints, bearings, gears). In addition, you are becoming

Give that the reaction between the cup of one sphere, Two similar heavy sph...

Two similar heavy spheres of 50mm radius are in equilibrium within a smooth cup of 150mm radius. Give that the reaction between the cup of one sphere is just double than that betwe

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