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1. How much work is done by a person if he lifts a load of 500 kg upto a height of 2m?​

Sagot :

jamyangnorzin

Explanation:

if we take g=9.8m/s^2

F=mg

m=500

F=500×9.8=4900N

h=2

so w=mgh

w=4900×2

=9800j

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