College

We appreciate your visit to A roller coaster with a potential energy of tex 235 200 J tex sits at the top of a 30 m high hill What is. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

A roller coaster with a potential energy of [tex]$235,200 \, J$[/tex] sits at the top of a 30 m high hill. What is the mass of the roller coaster?

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

A. 800 kg
B. 7840 kg
C. 8000 kg
D. 78,400 kg

Answer :

To find the mass of the roller coaster given its potential energy, we can use the formula for potential energy:

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

where:
- [tex]\( PE \)[/tex] is the potential energy,
- [tex]\( m \)[/tex] is the mass,
- [tex]\( g \)[/tex] is the acceleration due to gravity (approximately [tex]\( 9.81 \, \text{m/s}^2 \)[/tex]),
- [tex]\( h \)[/tex] is the height.

We need to find the mass [tex]\( m \)[/tex], so we can rearrange the formula to solve for [tex]\( m \)[/tex]:

[tex]\[ m = \frac{PE}{g \cdot h} \][/tex]

Plug in the given values:
- [tex]\( PE = 235,200 \, \text{J} \)[/tex]
- [tex]\( h = 30 \, \text{m} \)[/tex]
- [tex]\( g = 9.81 \, \text{m/s}^2 \)[/tex]

Substitute these into the rearranged formula:

[tex]\[ m = \frac{235,200}{9.81 \cdot 30} \][/tex]

Calculate the denominator:

[tex]\[ 9.81 \cdot 30 = 294.3 \][/tex]

Now divide the potential energy by the result:

[tex]\[ m = \frac{235,200}{294.3} \approx 799.18 \][/tex]

Therefore, the mass of the roller coaster is approximately [tex]\( 800 \, \text{kg} \)[/tex], which matches with the given option [tex]\( 800 \, \text{kg} \)[/tex].

Thanks for taking the time to read A roller coaster with a potential energy of tex 235 200 J tex sits at the top of a 30 m high hill What is. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada