Question

A crane lift a crate upward throw a height of 20m the lifting provided by crane is 5000N . How much work done by the crane

Answer 1

Given,

                Force (F)= 5000 N

                Displacement(S) = 20 m

We know that,

                      Work(W) = Force(F) * Displacement(S)

By substitutuing values from Given,

                       W = 5000 * 20 = 100000 J

∴ The work done by the crane is 100 kJ

Answer 2

The work done by the crane is $10^5\ J$.

Explanation:

Given that,

The force acting on the crane, F = 5000 N

It is lifted upward to a height of 20 meters, h = 20 m

To find,

The work done by the crane

Solution,

The work done by an object due to height is called its potential energy. It is given by :

$E=F\times h$

$E=5000\ N\times 20\ m$

$E=10^5\ J$

So, the work done by the crane is $10^5\ J$.

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Work done

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