CONSERVATION OF ENERGY

1
CONSERVATION OF ENERGY

• MECHANICAL ENERGY THE SUM OF ALL KE AND PE
  ASSOCIATED WITH AN OBJECT

2
MECHANICAL ENERGY

• ME KE ?PE
• LAW OF CONSERVATION OF MECHANICAL ENERGY IN THE
  ABSENCE OF FRICTION, THE TOTAL MECHANICAL ENERGY
  REMAINS THE SAME.
• MEiMEf Initial mechanical Energy Final
  mechanical Energy IN THE ABSENCE OF FRICTION

3
CALCULATIONS

• ½mvi2 mghi ½mvf2 mghf
• See Example problem 5E on page 184.