Question

How much will be the energy if a body of 50 kg weight is lifted to a height of 10m?

Answer 1

Given,

Mass (m) = 50 kg
Height (h) = 10
Acceleration due to Gravity (g) = 10 m/s^2

=> Potential Energy = mgh

=> P.E = (50 x 10 x 10) Joules

=> P.E = 5000 Joules




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Answer 2

The body will posses 4900 joules of energy.

Explanation:

It is given that,

Mass of the body, m = 50 kg

It is lifted to a height of, h = 10 m

When the object is lifted to a height of 10 meters, it will possess only potential energy. It is given by :

$P=mgh$

g is the acceleration due to gravity

$P=50\ kg\times 9.8\ m/s^2\times 10\ m$

P = 4900 J

So, the body will posses 4900 joules of energy. It is the required solution.

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Potential energy

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