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

Determine the cutting ratio, Write the velocity relationship in orthogonal ...

Write the velocity relationship in orthogonal cutting. A bar of 75 mm dia. is reduced to 73 mm by a cutting tool while cutting orthogonally. If the mean length of cut chip is 73.5

Beams, a beam ABC is simply supported at A and C and caries a couple equal ...

a beam ABC is simply supported at A and C and caries a couple equal to 100kN applied clockwise at B

Find out the smallest force, Find out the smallest force: A block weig...

Find out the smallest force: A block weighing 800 N is raised up with the help of two 6o wedges B and C of negligible weights as illustrated in Figure. If the coefficient of s

Diesel cycle, wath is diesel cycle with diagram

wath is diesel cycle with diagram

Aspects of scheduling , Aspects Of Scheduling  The difficulty is a mod...

Aspects Of Scheduling  The difficulty is a modification of a flexible manufacturing cell at ABB's plant for the manufacturing of turbocharger in Baden, Switzerland. The difficu

Thermal reservoir - thermodynamics, Thermal Reservoir - Thermodynamics: ...

Thermal Reservoir - Thermodynamics: Thermal Reservoir. A thermal reservoir is the part of environment that can exchange heat energy with system. It has adequately large capa

Procedure for calculating the wind force on vessels, Q. Procedure for calcu...

Q. Procedure for calculating the wind force on vessels? The National Building Code of Canada has a similar procedure for calculating the wind force on vessels as ASCE. The bas

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