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What is the potential energy of a 25 kg bicycle resting at the top of a hill 3 m high?

(Formula: [tex] PE = mgh [/tex])

A. 75 J
B. 735 J
C. 245 J
D. 37.8 J

Answer :

To find the potential energy of a bicycle at the top of a hill, we can use the formula:

[tex]\[ \text{Potential Energy (PE)} = m \times g \times h \][/tex]

Where:
- [tex]\( m = 25 \)[/tex] kg is the mass of the bicycle,
- [tex]\( g = 9.81 \)[/tex] m/s² is the acceleration due to gravity,
- [tex]\( h = 3 \)[/tex] m is the height of the hill.

Let's plug these values into the formula:

[tex]\[ \text{PE} = 25 \times 9.81 \times 3 \][/tex]

When you multiply these numbers, you get:

[tex]\[ \text{PE} = 735.75 \, \text{Joules} \][/tex]

Thus, the potential energy of the 25 kg bicycle resting at the top of a 3 m high hill is approximately 735.75 Joules.

Since we're choosing from the given options and if rounding is used, the closest choice is:

735 J

So, among the provided options, the correct answer is 735 J.

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