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

Reduce system to a single force - mechanics, Reduce system to a single forc...

Reduce system to a single force: Q: A system of parallel forces is acting on rigid bar as shown in the figure given below. Reduce this system to  a single force

Optimization, what are the different method for worm gear optimization

what are the different method for worm gear optimization

Reciprocatin compressor - , Reciprocatin Compressor. It is taken in use to...

Reciprocatin Compressor. It is taken in use to compressor gases. ( kE 2  - kE 1) = 0, ( pE 2  - pE 1) = 0 q 1-2  - w 1-2 = ( h 2  - h 1 ) + 0 + 0 - q 1-2  - (- w

Designing the cast iron housing for a heavy duty machines, Provide the vari...

Provide the various considerations to be taken in designing the cast iron housing for a heavy duty machines?

Objectives to service sector , Objectives After studying this unit, yo...

Objectives After studying this unit, you should be able to discuss the scope and extent of service industry, describe the phases of two wheeler industry growth, an

Show drain systems used in plant, Q. Show drain systems used in plant? ...

Q. Show drain systems used in plant? Process/power plants usually have a variety of different drain systems to collect the different types of liquid effluent. One of these is u

Differentiate between dynamometer and brakes, Can you Differentiate between...

Can you Differentiate between : Dynamometer and Brakes. Absorption Dynamometer and Transmission Dynamometer.

Categorization of geometric models, Q. Categorization of Geometric models? ...

Q. Categorization of Geometric models? Modern CAD systems define objects in 3-D. Thus, the designer can construct 3-D model of objects conveniently and store the database of th

Opreation reserach, please give the simple step with example to solve the o...

please give the simple step with example to solve the optimality test???

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