Question

if a 5-kilogram mass i raised vertically 2 meters from the surface of the earth, its gain in potential energy is approximately

Answer 1

Explanation:

Here We Use M*g*h

M=Mass=5kg

g=acc.due to gravity =10m/s^2

h=height=2m

P.E=5*10*2

=100J

Answer 2

The gain in potential energy is 98 J.

Explanation:

Mass, m = 5 kg

It is raised vertically 2 meters from the surface of the earth.

We need to find the gain in potential energy. It is given by :

$E=mgh\\\\E=5\times 9.8\times 2\\\\E=98\ J$

So, the gain in potential energy is 98 J.

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Potential energy

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