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 law of chemical combinations?

what is law of chemical combinations?

Brinell hardness test, what is static indentation and dynamic indentation?

what is static indentation and dynamic indentation?

Storage and handling of epoxy powder, Q. Storage and Handling of Epoxy Powd...

Q. Storage and Handling of Epoxy Powder? Coating materials shall be stored, handled and applied in strict accordance with procedures as outlined by the coating manufacturer, ex

Compare solid shaft with the hollow, Compare solid shaft with the hollow: ...

Compare solid shaft with the hollow: Compare solid shaft with the hollow shaft, by strength and their weight. Sol.: ( a ) Comparison by strength: Assume that both the s

About learning software''s, I am am Mtech student of Machine design and I a...

I am am Mtech student of Machine design and I am willing to join some core companies so is this the right time for learning some software''s if yes which are they...

Effect of the wet and dry curing methods on the strength, Effect of curing ...

Effect of curing conditions on strength, porosity, absorptivity, and shrinkage of concrete in hot and dry climate Abstract This term paper will study the effect of the wet a

Combined rules- priority rules-conventional priority rules, Combined Rules ...

Combined Rules           MOD (modified operation due date)                                 PN j = max (t + o j , t dj ) (SPT-Tr) (Truncated SPT)

Show the support locations for truckable skid, Q. Show the support location...

Q. Show the support locations for truckable skid? Unless instructed otherwise by Engineer, support locations for truckable skid shall be determined by skid Vendor. Support loca

Explain the back rake angle, Explain the Back Rake Angle It measured th...

Explain the Back Rake Angle It measured the downwards slope of the top surface of the tool from the nose to the rear along the longitudinal axis. Its purpose is to guide the di

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