How many liters of water will the mechanism lift to a height of 4 m, while performing work of 100 J?

univerkov | November 20, 2020 | education

A = mgh
We derive the mass from the formula by dividing each part of the expression (to the right and left of equals) by gh:
m = A / gh
Let’s substitute the known values:
m = 100J: (9.8 N / kg * 4m) = 2.55 kg (or about 2.6 liters)
Because 1 liter of water = 1 kg of water, then m = 2.6l
Answer: 2.6L

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