Question

A 1kg dictionary is resting on a table that is 1.5m high. How much potential energy

does it have?

Answer 1

Potential energy = 14.7 Joules.

Step-by-step explanation:

Given the following data;

Mass, m = 1kg

Height, h = 1.5m

We know that acceleration due to gravity is equal to 9.8m/s²

Potential energy can be defined as an energy possessed by an object or body due to its position.

Mathematically, potential energy is given by the formula;

`P.E = mgh`

Where, P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per seconds square.

h represents the height measured in meters.

`P.E = mgh`

Substituting into the equation, we have;

`P.E = 1*9.8*1.5`

P.E = 14.7 Joules.