whats mechanical energy?

Question

...so if some dude is lifting a weight, and holds it up, is it mechanical energy?

Answer 1

the total mechanical energy of an object is potenial energy + kinetic energy.

potential energy is stored in an object and kinetic energy is the extra energy of an object due to its motion.

think about a roller coaster. the energy that pushes it up is kinetic. as the roller coaster goes down, kinetic energy converts into potential energy, and it goes down full speed.

this roller coaster is also an example of the conservation of the total mechanical energy because the energys are converted from PE to KE..

to answer your question, yes its mechanical energy because the lifter applied a force to the weight and then the weight applies an opposite force on him.


hope this helps!

Answer 2

Mechanical energy

Answer 3

Mechanical energy is the energy which is possessed by an object due to its motion or due to its position. Mechanical energy can be either kinetic energy (energy of motion) or potential energy (stored energy of position). Objects have mechanical energy if they are in motion and/or if they are at some position relative to a zero potential energy position

Answer 4

Energy in a mechanical form

Answer 5

Mechanical energy is energy of motion or of potential for motion on a macroscopic scale.

Example:
Take a Slinky, the good old metal kind. Let it rest in the palm of your hand so that you can hold on to one end with the base of your thumb and fingers. (If your hand is very small or your Slinky is very large, you can just set the slinky on a table or other horizontal surface and use your thumb and ring finger of one hand to pinch the end of the Slinky resting on the table to keep it from moving.) Now use your other hand to twist the free end of the Slinky around its axis, in the clockwise direction. Go two complete turns (you can tell how far you've twisted by watching the little band on the Slinky's last coil.) Feel the Slinky fighting you? (It gets harder to twist, the farther you go.) Now keep ahold of the end you've been holding while you let go of the end you've been twisting. What happened? Well, if you were careful and kept the Slinky balanced in your hand or on the table and didn't let it go sproinging down to the floor, you saw the free end of the Slinky rotate first counterclockwise, then clockwise, then counterclockwise again, then clockwise again, and so on, until it eventually came to rest

Answer 6

Energy that generates any form of motion: That is angular or linear motion.

Answer 7

Do you mean kinetic energy?

Something like a flywheel, perhaps?

Answer 8

motion, same as kinetic energy

Answer 9

Take a look at this link
http://en.wikipedia.org/wiki/Mechanical_energy