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

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

what is static indentation and dynamic indentation?

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...

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

Determine optimal sequence plan, a) What do ypu understand by production Pl...

a) What do ypu understand by production Planning and Control Function. Briefly mention the objective of PPC. b) There are 8 job in an auxiliary unit requiring processing on mach

The percentage elongation of the metal-stress , Question 1 A metal rod h...

Question 1 A metal rod has a diameter of 8.74 mm and supports a load of 24.6 kN. Calculate the value of true stress on the rod. The diameter was measured with the load already a

Concept of plane stress, Concept of plane stress: Define the concept ...

Concept of plane stress: Define the concept of plane stress. Sol.:   In cubical element of strained material is acted on by stresses acting on only 2 pairs of parallel plane

Find span of the beam, A beam is simply supported and carries a uniformly d...

A beam is simply supported and carries a uniformly distributed load of 40kn/m run over whole length or span. The section of the beam is rectangular having depth as 500mm. If the s

Extraction column, 1. An extraction column (sketched below with the known p...

1. An extraction column (sketched below with the known process data) is used to remove acid from an oil stream by contacting it with pure water.  It can be assumed that the oil and

Milling, I need chart for speed/feed/depth of cut for general milling

I need chart for speed/feed/depth of cut for general milling

Rigid and linearly elastic material, Rigid and linearly elastic material: ...

Rigid and linearly elastic material: A rigid material is one which is having no strain regardless of the applied stress. A linear elastic material is one in which strain is

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