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

Gyroscope, what is principle of gyroscope

what is principle of gyroscope

Helix gear, How to calculate helix angle for the purpose of designing?

How to calculate helix angle for the purpose of designing?

Explain the semi universal drilling machine, Explain the semi universal dri...

Explain the semi universal drilling machine The semi universal drilling machine this machines, in addition to the above three basic movements, carry provision for swinging of

What is a cotter joint, These parts of joints are used to connect two rods,...

These parts of joints are used to connect two rods, which are under compressive or tensile stress. The ends of the rods are in the manner of a socket and shaft that fit together an

Pendulum pump mechanism, describe about pendulum pump mechanism and dia...

describe about pendulum pump mechanism and diagram

Refractory materials, Refractory Materials These materials are made up...

Refractory Materials These materials are made up of engineering ceramics that are quite expensive in their pure forms. Such materials are also complicated to form. Most indust

Find power transmitted by cross type belt, Find power transmitted by cross ...

Find power transmitted by cross type belt: Find power transmitted by cross type belt drive connecting two pulley of diameter 45.0cm and 20.0cm that are 1.95m apart. The max

Find out the wave retarders in tandem, Wave Retarders in Tandem Write th...

Wave Retarders in Tandem Write the Jones matrices for the following retarders: (a) A π/2 wave retarder with the fast axis along the x direction. (b) A π wave retarder with

What is hot extrusion, Q. What is Hot extrusion? Hot extrusion is a hot...

Q. What is Hot extrusion? Hot extrusion is a hot working process, which means it is done above the material's recrystallization temperature to keep the material from work harde

Arc strikes-metallurgical defects, Arc strikes Represent any localised ...

Arc strikes Represent any localised heat affected zone caused by an arc. Arc strike tends to produce hardening particularly in high carbon steels and alloy steels. Grinding of

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