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

Design, Hi I am new tutor here Pankaj kumar I got the mail for the verif...

Hi I am new tutor here Pankaj kumar I got the mail for the verification and i regitered now . But how can i get the sample assignment for the further process.

Air injection system and solid injection system, (a) Explain a typical fuel...

(a) Explain a typical fuel feed system for a C.I engine, differentiate between air injection system and solid injection system. (b) Why Gasoline injection system has been adopte

Selection of metallic materials, Q. Selection of metallic materials? Th...

Q. Selection of metallic materials? This Engineering Practice has been written to assist those involved in the construction of new equipment and for the maintenance of existing

Probability, Airlines like to overbook their flights (this is a vibrant are...

Airlines like to overbook their flights (this is a vibrant area of research called yield management). It is estimated that 10% of the people who book their flight do not show up. H

Calculate stress in the bolts, A new high temperature alloy has been dev...

A new high temperature alloy has been developed with creep properties as follows: stress exponent, m = 4.5, activation energy, Q = 110,000 J/mol and pre-exponential constant,

Evaluate principal stress and maximum shear stress, At a point in a beam, t...

At a point in a beam, the bending stress is 50 MPa shear stress and tensile is 20 MPa. Calculate :- (i) The principal stress and maximum shear stress. (ii) The tensile stress

Fluids, show a schematic circuit diagram of a electric hydraulic gear pump...

show a schematic circuit diagram of a electric hydraulic gear pump with adjustable with one direction flow and explain the operation

Impulse- momentum - work and energy, Impulse, Momentum, Work and Energy: ...

Impulse, Momentum, Work and Energy: As a part of summary, you can remember various important principles in terms of following equations.  (i)        Impulse-Momentum equati

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