College

Dear beloved readers, welcome to our website! We hope your visit here brings you valuable insights and meaningful inspiration. Thank you for taking the time to stop by and explore the content we've prepared for you.
------------------------------------------------ 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.