Question

What is the potential energy for a massive 45.3 g with a height of 31 cm

Answer 1

Given:

• Mass, m = 45.3 g

,

• Height, h = 31 cm

Let's find the potential energy.

To find the otential energy, apply the formula below:

$PE=m\ast g\ast h$

Where:

PE is the potential energy in Joules

m is the mass in kg

g is acceleration due to gravity = 9.8 m/s²

h is the height in meters

• Convert the Mass from grams to kilograms:

Where 1 kg = 1000g

$45.3g=\frac{45.3}{1000}=0.0453\text{ kg}$

• Convert the height from cm to meters:

Where 1 m = 100 cm

$31\operatorname{cm}=\frac{31\operatorname{cm}}{100}=0.31m$

Hence, we have:

$PE=0.0453\ast9.8\ast0.31$

Solving further, we would get:

$PE=0.1376214\text{ Joules }\approx0.138\text{ Joules}$

Therefore, the potential energy is approxiamtely 0.138 Joules.

ANSWER:

0.138 Joules