Question

the portal is a luggage of 15 kg from the ground and put it on his head 1.5 metres above the ground calculate the work done by him on the luggage​

Answer 1

Explanation:

ork done by the porter on the luggage = Force x displacement

                                                                    = mgh

                                                                     = 15 kg x (9.8 m/s2) x 1.5 m

                                                                      = 220.5 J

Answer 2

The work done by him on the luggage​ is 220.5 Joules.

Explanation:

It is given that,

Mass of the luggage, m = 15 kg

It is placed on his head 1.5 meters above the ground, h = 1.5 m

Let W is the work done by him on the luggage​. It is equal to the potential energy. It is given by :

$P=mgh$

g is acceleration due to gravity

$P=15\ kg\times 9.8\ m/s^2\times 1.5\ m$

P = 220.5 J

So, the work done by him on the luggage​ is 220.5 Joules. Hence, this is the required solution.

Learn more,

Potential energy

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