Kinetic Energy
Subject undefined
Pronunciation: ki•NET•ic EN•er•gy
Definition
the energy possessed by a body because of its motion; KE = 1/2(mass)(velocity)2
Example
When served, the kinetic energy of a 0.580 kilogram tennis ball as it loses contact with the racket at 95.5 mph (26.7 m/sec) is 206.7 Joules.
KE = ½mv2
KE = ½(0.580)(26.7)2
KE = 206.7 J