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
Explain concepty of Worktable in radial drilling machine The worktable is supported on an arm mounted to the column. The worktable can be adjusted vertically to accommodate dis

Define and classified parallel forces Sol.: The forces, the lines of action of which are parallel to each other, are called as parallel forces. They do not meet at one point

can you give me a complete design of hydraulic fixture for turning and facing machine ? with all dimension an graph and analysis after apply the fixture

Q. Describe Natural and Synthetic Sand? Natural sand: A natural sand is the on which is available from natural deposits. Only assistive and water need to be added to it to ma


OBJECTIVES OF VE: 1. To establishing the monitoring value of the function of the product or services. 2. To identifying unnecessary cost or hidden cost in a product or services.


what are the forces acting on workpiece during turning process. how workpiece should be clamp

#wHAT WILL BE THE PULLEY CRITERIA TO DECIDE THE RPM

Determine force on a body to pull or push: Q: A wooden block having weight of 50N rests on the horizontal plane. Determine force required which is acted at an angle of 15° to