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.

bobpursley
power= m g h/time
can you compare them? 
galina
em..kinda

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