Question

please help me fast ​

Answer 1

Explanation:

apply

P =n mgh / t

n= 30

h =0.2 m

g = 9.8

m= 60 kg

t = 40

P = 30×60×0.2×9.8/40

= 88.2 W

Answer 2

hlo mate

here is ur answer

each step = 20cm

30 steps = 30×20= 600 cm = 6 m

now, power = W/Time

for work to be done we need force × displacement

force= mg

therefore W= mgh

= 60 × 9.8 × 6

= 3528 J

power = W/T

= 3528 ÷ 15

= 235 watt. ans.

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