f.) Power is the rate of doing work
Powe (in watts) = Work done (in Joules)/ Time (in Seconds)
g.) 1 Watt is a rate of working of one Joule per second
13.) A girl does 1000 J of work in 5 seconds. What power does her develop?
1000J/ 5s = 200 watts in power
14.) A man lifts a weight of 300N through a vertical height of 2m in 6 seconds. What power does he develop?
Work done = Force x Distance.
Work done = 300N x 2m
Work done = 600J
Power = Work done/ time
Power = 600J / 6 s
Power = 100 W
16.)
