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

2

Answers

2016-01-03T21:57:16+05:30
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.
0
2016-01-05T14:55:04+05:30
I hope it helps.......................^_^
1 5 1