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

Convert the flow-rate of a compressor, Convert the flow-rate from Am3/h to ...

Convert the flow-rate from Am3/h to Sm3/h Consider a compressor (model ABC-Z4).  The compressor has a suction pressure of 3 barg, and a discharge pressure of 6 barg.  The inlet

Material handling equipment, In selection of material handling equipment...

In selection of material handling equipment itself Hageman indicates that the final consideration are: 1. Methods of Installation: Operating controls should be accessibl

Heat loss in cylindruical pipe, Explain which laws of physics are used to d...

Explain which laws of physics are used to discuss heat loss in a pipe, and briefly explain how the famous equation for the loss of heat in a cylindrical pipe is derived. Explain th

Violation of k-p statement - thermodynamics, V iolatio n of K-P Statement...

V iolatio n of K-P Statement: A HE produce work 'W' by exchanging the heat with one reservoir at temp. T 1 only. The K-P statement is violated.   H.P. is extract

GOVERNORS, Explain Wilson HArtnell Governor

Explain Wilson HArtnell Governor

Determine the elements of the vdafs version 2.0, Determine the Elements of ...

Determine the Elements of the VDAFS version 2.0 Elements of the VDAFS version 2.0 are shown in Table. Curves and surfaces are described with the help of points, set of points

Material handling, how the car manufacturing company handle the material

how the car manufacturing company handle the material

Design the nozzle connections, Q. Design the Nozzle Connections ? Nozzl...

Q. Design the Nozzle Connections ? Nozzle design shall be such that if the actual combined thickness of the shell or head and reinforcing pad exceeds 50 mm, either integrally r

Design for a water treatment plant, Design for a water treatment plant: ...

Design for a water treatment plant: Produce as individuals a single tab Excel spreadsheet which shows a rough initial design for a water treatment plant taking 15

Evaluate the exit velocity, A perfect gas flows through a nozzle when it ex...

A perfect gas flows through a nozzle when it expends in a reversible adiabatic manner, the inlet conditions are 22 bar,, 500 o c, 38 m/s. At exit the pressure is 2 bar. Evaluate th

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