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

CHEMISTRY, WHAT IS CALGON CONDITIONIMG

WHAT IS CALGON CONDITIONIMG

Determine the rankine efficiency, A simple Rankine cycle works between pres...

A simple Rankine cycle works between pressures 0.06 bar and 28 bar, the initial condition of steam being dry saturated. Determine the cycle efficiency, specific steam consumption a

Explain objectives of radial drill machine, Explain Objectives of Radial dr...

Explain Objectives of Radial drill machine There are many objectives such like, 1.   With the help of angle drill machine, an angle hole can be produced at any angle.  2.

Estimate the air flow velocity , A smooth glass plate is coated with a spec...

A smooth glass plate is coated with a special electrically conductive film that may be used to produce a constant heat flux on the plate. Estimate the air flow velocity which must

Expected service life of a component, Q. Expected service life of a compone...

Q. Expected service life of a component in high temperature environment? The expected service life of a component in a high temperature environment is limited by either the mat

Alloys for cutting tools, Alloys For Cutting Tools  Apart from tool st...

Alloys For Cutting Tools  Apart from tool steels illustrated in further unit, alloys that comprise wholly non-ferrous elements have been enhanced. Such alloys behave superior

Evaluate the gyroscopic couple, The turbine rotor of a ship having a mass o...

The turbine rotor of a ship having a mass of 200Kg moves at 200 r.p.m and its radius of gyration is 0.30 m. If the rotation of the rotor is clockwise looking from the aft., evaluat

Show gasket compression, Q. Show Gasket Compression? Gasket compression...

Q. Show Gasket Compression? Gasket compression can also be used as a guide for limiting bolt torque. Spiral wound gaskets should be compressed to an average of 75% of origin

What do you known by investment casting, What do you known by Investment ca...

What do you known by Investment casting ? What are main materials used for building the investment pattern ?

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