Ask Question
18 January, 04:31

A roller coaster has a mass of 500 kg it drops from rest at the top of a hill that's 57 m tall how fast is it going when it reaches the bottom acceleration due to gravity is g=9.8 m/s

+2
Answers (2)
  1. 18 January, 05:42
    0
    Answer Here, assuming no energy is dissipated by friction or air resistance, all the gravitational potential energy it has at the top of the hill is converted to kinetic energy at the bottom of the hill. Therefore, we have:

    m

    g

    h

    =

    1

    2

    m

    v

    2

    final

    We want to solve for

    v

    , therefore

    2

    g

    h

    =

    v

    2

    final



    2

    g

    h

    =

    v

    final



    2

    (

    9.8

    )

    (

    88

    )

    =

    v

    final

    41.5

    m

    s

    =

    v

    final
  2. 18 January, 08:12
    0
    The answer is 33.4m/s ... i may be wrong but i'm sure that's the answer.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A roller coaster has a mass of 500 kg it drops from rest at the top of a hill that's 57 m tall how fast is it going when it reaches the ...” in 📘 Physics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers