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Harjitsingh33 Harjitsingh33
  • 06-05-2015
  • Physics
Answered

Find the energy in joules required to lift a 2,500g object a distance of 500cm

Verified Answer :

dzy dzy
  • 06-05-2015

What's happening here is that you're changing the potential energy of this object by lifting it 500cm. 

Therefore the energy required to lift it would be the additional potential energy it gains. Look at the equation for potential energy:

PE = mgh

and convert and plug in your values:

PE = (2.5kg) (9.8 m/s²) (0.5m)
PE = 12.25J

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