physics

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.

asked by galina
  1. power= m g h/time

    can you compare them?

    posted by bobpursley
  2. em..kinda

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

    posted by galina
  4. No, just do mgh, assume no speed at top :)

    posted by Damon

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