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a person on a bike (m=90 kg) is travelling 4 m/s at the top of a 2 m hill. what is the bikers total energy?

A) 720 J
B) 1994 J
C) 2484 J
D) 1764 J

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3 answers

  1. I think it’s 720 J but I’m not sure. Could someone tell me if I’m right?
    pls

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  2. kinetic energy ... 1/2 m v^2 = 1/2 * 90 * 4^2

    gravitational potential energy ... m g h = 90 * 9.8 * 2

    add the two energies

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  3. Thank you!

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