Question

A plant is sitting on top of a shelf. It has energy. The plant is 3 meters off the ground and weighs 2 kg, calculate its potential

energy.
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Answer 1

58.8 joule

Explanation:

To calculate the potential energy, we need to take note of the following;

The formula for calculating potential energy is given as P=mgh

where p=potential energy

m is the mass of the object

g is the acceleration due to gravity

h is the height of the object above the ground

g has a standard value define as 9.8 m/s²

From the question given;

mass(m) = 2kg

height(h) = 3 meters

We can now proceed to insert our values into the formula;

P=mgh

p=2× 9.8×3

p=58.8

Potential energy is 58.8 joule

Answer 2

Answer: The potential energy possessed by the plant is 58.86joules

Explanation:

N/B. The given mass is 2kg not weight

This problem bothers energy.

By definition potential energy is the energy possessed by virtue of its position

If a mass of body m is held at a height h meters above the ground

Then potential energy

P.E= weight of body x height

=mgxh

P. E= mgh

Given data

Mass of plant= 2kg

Height above the ground = 3m

Assuming g= 9.81m/s²

P.E= 2*9.81*3

= 58.86joules