Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

needhelpfastplease

  • 2 years ago

What is the kinetic energy of a 1.0-kg billiard ball that moves at 5.0 m/s? A. 5.0 J B. 6.5 J C. 10.0 J D. 12.5 J

  • This Question is Closed
  1. needhelpfastplease
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    @kym02

  2. kym02
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    Do you remember the formula?

  3. needhelpfastplease
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    i thiink so 1/2 times mass times (velocity squared) 12mv2

  4. needhelpfastplease
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    he equation for finding Kinetic Energy KE is half the mass m times velocity v squared. KE=12mv2

  5. kym02
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    correct! so since\[K _{E}=\frac{ 1 }{ 2 }mv ^{2}\] then, \[\frac{ 1 }{ 2 } \times 1.0kg \times 5.0 ms ^{-1}\] \[=12.5 J\] So, the answer is D.

  6. needhelpfastplease
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Thanks!

  7. kym02
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    Anytime!

  8. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy