Question

A box has a mass of 5.8 kg the box is lifted from the garage floor and place off the shelf if the box games 1425 use of potential energy how height is the shelf

Answer 1

Here

force applied=5.8N

change in potential energy=1425J

therefore height=change in potential/force applied

=1425/5.8

=245m

Answer 2

Given that,

Mass of a box, m = 5.8 kg

Potential energy of the box, E = 1425 J

To find,

Height of the shelf

Solution,

The formula of the potential energy is given by :

$E=mgh$

h is height of the shelf

$h=\dfrac{E}{mg}\\\\h=\dfrac{1425\ J}{5.8\ kg\times 9.8\ m/s^2}\\\\h=25.07\ m$

So, the height of the shelf is 25.07 meters.

Learn more,

Potential energy

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