12-05-2010, 07:54 PM
(This post was last modified: 12-05-2010, 07:55 PM by AceInfinity.)
Ek = (1/2)mv^2
Ek = (1/2) x 5kg x (45m/s^2)^2
[without units = Ek = (1/2) x 5 x (45)^2]
Ek = Answer
The other one is potential energy which gets converted into kinetic energy when in motion.
Mechanical energy always stays the same (Ek + Ep) < the ratio between potential energy and kinetic energy changes though.
Ek = (1/2) x 5kg x (45m/s^2)^2
[without units = Ek = (1/2) x 5 x (45)^2]
Ek = Answer
The other one is potential energy which gets converted into kinetic energy when in motion.
Mechanical energy always stays the same (Ek + Ep) < the ratio between potential energy and kinetic energy changes though.