An electric crane lifts 2000 kg of contanier to a height of 40 m then the amount of work done by the crane is ______ kilo Newtown ( take g= 10 m/s^2)
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Explanation:
WORK=mgh
=2000×10³×10×40
=800000000
=800000 KJ (KILO JOULES)
WORK UNIT IS JOULES NOT NEWTON
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