How long will it take a 60kg man to climb a height of 22m if he expended energy at a rate of 0.25kW. [g = ms^-2]

razinagold

6 years ago

thanks, you guys really helped me a lot thanks so much for clearer explanations

onyekah3

11 years ago

This question has a mistake. It ought to be 22g not 33g.

King33Victor

1 month ago

solution
given:
mass, m = 60g
height, h = 22m
constant g = 10m
power, p = 0.25kw

but because power alone is measured in watt, we have to convert it to watt, W
to convert it u multiply it by 1000
therefore
0.25kw = 0.25x1000
= 250w

recall:
p = w/t
but w = mgh
p= mgh/t
250 = 60x10x22/t
cross and multiply ❌
250t = 13200
divide both sides by 250
250t/250 = 13200/250
t = 52.8sec.

Myschool Kelly

10 years ago

The question has been modified. Thanks for your observations.

lemibare

11 years ago

power =fxd/t

250 =600x33/t

t =600x33/250

t = ?

The question (no of distance) is wrong.

prettypex

10 years ago

omo c jamb oo