Define mechanical energy, Physics

Assignment Help:

Mechanical energy E of particle, system or object is explained as the sum of kinetic energy K and potential energy U, i.e. E = K + U. It is a scalar quantity having dimensions [ML2T-2] and SI unit joule.

(i)  It relays on frame of reference.

(ii) A body may have mechanical energy without having either kinetic energy or potential energy. Though, if both potential and kinetic energies are zero, mechanical energy will be zero. The result may or may not be true, i.e., if E = 0 either both KE and PE are zero or PE negative and KE positive such that KE + PE = 0

 


Related Discussions:- Define mechanical energy

Projectile-motion, A particle is projected from ground with velocity 40sqr...

A particle is projected from ground with velocity 40sqrt2m/s.find- a)velocity and b)displacement of particle after 2sec .Take g=10m/s^2 Ans) velocity v=u+at a=-g v=40√2-10*2

#Inductance balanced delta connected load, how to you calculate the inducat...

how to you calculate the inducatnce on a balanced delta circuit?

Define electric line of force, What should be the length of the dipole ante...

What should be the length of the dipole antenna for a carrier wave of Frequency 3 X 1O 8 Hz? Define 'electric line of force' and give its two important properties.

Complex variables and rlc circuits, Research the topic of RLC circuits with...

Research the topic of RLC circuits with AC sources. Explain what is given in a general problem involving a circuit and what is asked for. Explain the terms which comprise an RLC ci

Telescope, Working of terrestrial telescope

Working of terrestrial telescope

State the law of conservation of electric charges, Q. State the law of cons...

Q. State the law of conservation of electric charges? The entirety charge in an isolated system always remains constant. For instance Uranium ( 92 U 238 ) can decay by emittin

Series Combinations of Resistance, how to verify the laws which govern the ...

how to verify the laws which govern the resistance which are connected in series

Explain the change in the thermal energy of the water, A cylinder having 1....

A cylinder having 1.00 g of water at the boiling point is heated until all the water turns into steam. The expanding steam pushes a piston 0.365 m. There is a 215-N frictio

What is the unit of magnification? , Magnification is the ratio of size of ...

Magnification is the ratio of size of image to the size of object. hence it is a dimensionless constant. It has no units. 1/m is not its unit.(1/m is the unit of power=DIOPTRE)

Suppose the sides of a closed polygam represent vector arran, Suppose the s...

Suppose the sides of a closed polygam represent vector arrangend head to tail rule , what is sum of these vectors ?

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