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