physics

posted by galina

Mrs. Klein (59 kg) climbs a ladder to the top of the roof (3.8 m) in 18 seconds. Mr. Bruening (115 kg) completes the same task in 22 seconds and Mrs. Austin (55.5 kg) can do it in 15 seconds. Rake the teachers in order of the most powerful to the least.

  1. bobpursley

    power= m g h/time

    can you compare them?

  2. galina

    em..kinda

  3. galina

    the answer doesn't need kinetic energy right?
    'cause I thought since the speed is the velocity, so I kinda confusing about that
    thxXD

  4. Damon

    No, just do mgh, assume no speed at top :)

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