Question

There is a bell at the top of a tower that is 45 m high. The bell weighs 190 N. The bell has ____________ energy.

Answer 1

The bell has 8,550 Joule energy.

Step-by-step explanation:

Gravitational Potential Energy

Gravitational potential energy is the energy stored in an object because of its height in a gravitational field.

It can be calculated with the equation:

U=m.g.h

Where:

m = mass of the object

h = height

g = acceleration of gravity, or
`9.8 m/s^2`

Since the weight of an object of mass m can be calculated as:

W = m.g

The gravitational potential energy is:

U = W.h

The bell of weight W=190 N at the top of a tower is h=45 m high. Thus its energy is:

U = 190 N . 45 m

U = 8,550 Joule

The bell has 8,550 Joule energy.