DONT ANSWER WITH A LINK PLEASE I NEED AN ANSWER FROM SOMEONE! What is the kinetic energy of a 4,000 kg elephant that is running

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DONT ANSWER WITH A LINK PLEASE I NEED AN ANSWER FROM SOMEONE!

What is the kinetic energy of a 4,000 kg elephant that is running at 2 m/s? What is the kinetic energy of the elephant if it running at 4 m/s? How do the two kinetic energies compare with one another?

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Nho 3 years 2021-09-03T10:43:10+00:00 2 Answers 80 views 0

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  1. thuhuong
    0
    2021-09-03T10:44:54+00:00
    Reply

    At 4 m/s?

    How do the two kinetic energies compare to one another? QUADRUPLES !

    #3 What is the kinetic energy of a 2,000 kg bus that is moving at 30 m/s?

    Potential energy

  2. Dau
    0
    2021-09-03T10:45:03+00:00
    Reply

    Answer:Forms of energy:

    Kinetic energy

    is the energy of motion.

    Kinetic Energy (KE) depends on mass (m) and speed (v).

    Kinetic Energy = mass x velocity2

    2

    KE = mv2

    2

    explanation; is just an explanation

    What is the kinetic energy of a car that has a mass of 1200 kg and is moving at a speed of 20 m/s ?

    KE = mv2

    2

    KE = 1200 kg * (20 m/s)2

    2

    KE = 1200 kg * 400 m2/s2

    2

    KE = 480,000 kg*m2/s2

    2

    KE = 240,000 kg m2/s2

    or

    240,000 J

    How does the kinetic energy compare to the example problem above?

    #3 What is the kinetic energy

    of a car that has a mass of 1200 kg and is moving at a speed of 40 m/s ?

    KE = mv2

    2

    KE = 1200 kg * (40 m/s)2

    2

    KE = 1200 kg * 1600 m2/s2

    2

    KE = 1,920,000 kg*m2/s2

    2

    KE = 960,000 kg m2/s2

    or

    960,000 J

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