What is the gravitational potential energy associated whit the spoon at the height relative to the surface of the table. If a spoon is raised 21.0cm above a table and if the spoon and its contents have a mass of 30.0g.

0.062J

Explanation:

Given parameters:

Height of raising the spoon = 21cm

Mass of spoon = 30g

Unknown:

Gravitational potential energy = ?

Solution:

The gravitational potential energy of a body is the energy by virtue of the position of a such a body in space.

It is given as:

G. P. E = mgh

where m is the mass

g is the acceleration due to gravity

h is the height

Convert the parameters to appropriate units.

21cm to m gives 0.21m

30g to kg gives 0.03kg

G. P. E = 0.03 x 9.8 x 0.21 = 0.062J