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

Compressor, why does pressure and temperature rise after the process of com...

why does pressure and temperature rise after the process of compression

Theorem of parallel axis, Theore m of parallel axis It states that if ...

Theore m of parallel axis It states that if the M.I. of plane area about the axis passing through the C . G . can be denoted by I G . The M . I . of area about any other

What is a clay-characteristics , 1.  What is a soil in an engineering conte...

1.  What is a soil in an engineering context? Define. 2.  (a)  What is a clay? (b) What are the major properties and characteristics of clay? Discuss. (c)  Define the term

Safety benefits - industrial safety, Safety Benefits - Industrial Safety ...

Safety Benefits - Industrial Safety An industry or a company which follows safety programmes is benefitted in several ways. The benefits are shared among employer and employee

Calculate force required for equilibrium, Calculate force required for equi...

Calculate force required for equilibrium: A member ABCD is subjected to the point loads P 1 , P 2 , P 3   an d P 4   as shown in the figure given below

Calculate the length of developed blank, Calculate the Length of Developed ...

Calculate the Length of Developed Blank Part shown in Figure is to be produced from flat sheet by bending operation. Calculate the length of the developed blank. Assume k = 0.

Flanged pressure vessel nozzles, Q. Flanged pressure vessel nozzles? Th...

Q. Flanged pressure vessel nozzles? The Designer is responsible for ensuring that the facings, bolt circle, number of bolts, and size of bolts of vessel nozzles, match the mati

Determine the minimum thickness required, Determine the minimum thickness r...

Determine the minimum thickness required: A thin spherical shell of 2 m diameter is subjected to an internal pressure of 1.5 N/mm 2 . If the allowable tensile stress of the ma

Pressure, relation between fluid pressure and velocity

relation between fluid pressure and velocity

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