PLEASE HELP I NEED THIS TO PASS THE EIGHTH GRADE AND I ONLY HAVE A COUPLE HOURS LEFT!!!!!! Consider a 2-kg bowling ball sits on top o

Question

PLEASE HELP I NEED THIS TO PASS THE EIGHTH GRADE AND I ONLY HAVE A COUPLE HOURS LEFT!!!!!!
Consider a 2-kg bowling ball sits on top of a building that is 40 meters tall. It falls to the ground. Think about the amounts of potential and kinetic energy the bowling ball has:
• as it sits on top of a building that is 40 meters tall.
• as it is half way through a fall off a building that is 40 meters tall and travelling 19.8 meters per second.
• as it is just about to hit the ground from a fall off a building that is 40 meters tall and travelling 28 meters per second.
Number 1. What is the potential energy of the bowling ball as it sits on top of the building?
Number 2. What is the potential energy of the bowling ball half way through the fall?
Number 3. What is the kinetic energy of the ball half way through the fall?
Number 4. What is the kinetic energy of the ball just before it hits the ground?

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Thành Đạt 3 years 2021-08-31T03:49:28+00:00 1 Answers 4 views 0

Answers ( )

  1. ngochoa
    0
    2021-08-31T03:51:00+00:00
    Reply

    Answer:

    the pe at the top of the building: 784 J

    the pe halfway through the fall: 392 J

    the pe just before hitting the ground: 784 J

    Explanation:

    Pls brainliest me

    I had this question before

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