Mechanics

Energy Conservation

PE and KE trade places

  • High school
  • about 4 min
  • 6 of 7 in the family
Not started
h = 5 mv = 0.0 m/sPEKEE = 49 J

Parameters (m = 1 kg, g = 9.81)

vmax=2gh=9.90 msv_{max} = \sqrt{2gh} = 9.90\,\tfrac{\text{m}}{\text{s}}

PE = 49.1 J · KE = 0.0 J

• The sum PE + KE stays constant • At the top it is all potential, at the bottom all kinetic • Impact speed depends only on the height