Question

1. calculate the power output by climbing the staircase slowly & rapidly where the work done is 1489.6J and time required to climb the staircase slowly is 3 seconds and rapidly 6 seconds.
2. how many 100 watt bulbs would light climbing the stairs slowly & rapidly.
no of bulbs = total power/power of 1 bulb

you can also round off 1489.6 J

Answer 1

power = work /time
p = 1489.6/3 = 496.53....W
p= 1489.6/6 = 248.2......W
about 5 bulbs would light when we climb slowly
and
about 2.5 bulbs would light up when we climb rapidly.

Answer 2

i hope it helps.......................^_^

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