Question

What will be the work done if stone of mass. 2kg is raised through a height of 10cm.

Answer 1

Hey there!

Given,
Mass of stone = 2 kg
Height = 10 cm = 0.1 m
Taking g = 10 m/s^2

Now,
Work done = Potential Energy
W = mgh
W = 2 × 10 × 0.1
W = 2 J

Hope It Helps You!

Answer 2

The energy possessed by a body at any instant is 1.96 Joules.

Explanation:

Given that,

Mass of the stone, m = 2 kg

It is raised through a height of 10 m, h = 0.1 m

To find,

The work done by the stone.

Solution,

When an object is lifted to a height, it possess potential energy. It is given by :

$P=mgh$

$P=2\ kg\times 9.8\ m/s^2\times 0.1\ m$

P = 1.96 Joules

So, the energy possessed by a body at any instant is 1.96 Joules.

Learn more,

Potential energy

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