What weight can be lifted to a height of 5m, having performed work 0.02kJ

univerkov | December 29, 2020 | education

Let’s translate all units into the international SI system:
A = 20J
H = 5 m
m-?
Let us write the law of conservation of energy (ZSE):
A = mgh;
m = A / gh = 20/50 = 400g.
Answer: a load weighing 400 grams

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