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2 years ago

What is the potential energy of a 2.3g penny that is held at the top of the cn tower (553m)?

Physics

1 answer:

SpyIntel [72]2 years ago

6 0

Answer:

12.46 joules

Explanation:

The formula of potential energy is:

$\displaystyle{E_p = mgh}$

where m is mass, g is gravitational force (9.8 m/s^2) and h is height.

Mass is given to be 2.3 grams.
Gravitational Force is defined as 9.8 m/s^2.
Height is given as 553 meters.

However, mass must be in kilograms (kg) unit so we will be converting the gram to kilogram:

We know that a gram equals to 0.001 kg so 2.3 grams will equal to 2.3 * 0.001 = 0.0023 kg.

Therefore, substitute known information in the formula of potential energy:

$\displaystyle{E_p = 0.0023 \times 9.8 \times 553}\\\\\displaystyle{E_p = 12.46 \ \, \sf{Joules}}$

Therefore, the potential energy is 12.46 joules.

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