Potential energy and kinetic energy- thermodynamics, Mechanical Engineering

Potential energy (PE)

The energy possessed by body or system by virtue of its position above the datum level. The work done is because of its falling on earth's surface.

Potential energy, PE = Wh = mgh N.m

Where, W = weight of body, N ; m = mass of body, kg h = distance of fall of body, m

g = acceleration because of gravity, = 9.81 m/s2

Kinetic Energy (KE)

The energy possessed by a system by virtue of its motion is called kinetic energy. It means that system having of mass m kg while moving with a velocity V1 m/s, does 1/2mV12 joules of work sooner than coming to rest. So in the state of motion, system is said to have a kinetic energy given as;

K.E. = 1/2mv12

However, when the mass undergoes a change in its velocity from velocity V1 to V2, the change in kinetic energy of system can be expressed as;

K.E. = 1/2mv22 - 1/2mv12

 

Posted Date: 10/15/2012 1:40:26 AM | Location : United States







Related Discussions:- Potential energy and kinetic energy- thermodynamics, Assignment Help, Ask Question on Potential energy and kinetic energy- thermodynamics, Get Answer, Expert's Help, Potential energy and kinetic energy- thermodynamics Discussions

Write discussion on Potential energy and kinetic energy- thermodynamics
Your posts are moderated
Related Questions
how to calculate point of contraflexure in SFD and BMD

Explain Atmospheric Pressure (P atm ) Atmospheric Pressure is the pressure exerted by atmospheric air on any surface. It is calculated by a barometer. The standard values of it


WHAT IS CALGON CONDITIONIMG

chemical milling is used in aircraft plant to create pockets in wing sections made of an aluminium alloy. the starting thickness of one work part is 20 mm.a series of rectangular s

Q. Intermodular Piping Connections Alignment of pies shall be achieved as detailed in the construction drawings. Special attention shall be paid to the alignment and installati

What is Conformance Testing Conformance Testing : There was no mechanism for testing processors or resolving errors between two processors.

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

Alumina-Silica Composite  This composite is an especially usual refractory material. Due to easy availability and low cost aluminia-silica composite is extensively utilized in

physical meaning of viscous damping