Kinetic Energy and The Work-Energy Theorem

1
(No Transcript)
2
Kinetic EnergyandThe Work-Energy Theorem
3
Review Energy is the ability to do work. Work
is the transfer of energy.

• The kinetic energy of an object is the energy
  which it possesses due to its motion.
• Ek ½ mv2
• m ? kg v ? m/s Ek ? J

4

• Work done on an object can change its kinetic
  energy. This is part of the work-energy theorem.
• Or simply Wnet ?E

5

• Sometimes this means
• Wnet ?Ek
• Wnet Ekf Eki
• Wnet ½mvf2 ½mvi2
• Wnet ½m(vf2 vi2)