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Conservation of Energy

 Gravitational potential energy equation

  • DEp= change in gravitational potential energy in joules (J)
  • m = mass in kilograms (kg)
  • g =  gravitational field strength in newtons per kilogram ( N kg-1)
  • Dh = change in height in metres (m)

kinetic energy equation

  • Ek =  kinetic energy in joules (J)
  • m = mass in kilograms (kg)
  • v = velocity in metres per second (ms-1)