Question

Calculate the mass of water stored in a 72m high tank and having potential energy 3600 J.

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Answer 1

Explanation:

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Answer 2

Explanation:

Given :

Height (h) = 72m

Potential energy (P.E) = 3600J

Acceleration due to gravity (g) = 10 m/s²

To find :

Mass (m)

Solution :

Potential energy = mgh

⇒ 3600 = m × 10 × 72

⇒ 3600 = 720m

⇒ m = 3600/720

⇒ m = 5 Kg is the mass of water.