Question

A ladder of length 10 meter makes an angle 60o with the wall. A man of mass 80
kg climbs up the ladder with a 20 kg bag in 5s time. Calculate the power of the
man.

Please answer fast

Answer 1

Explanation:

diplacement=10m

Q=60°

mass of man=80 kg

mass of bag=20 kg

time=5s

power=work/time

= force* displacement/time

= force* velocity

Answer 2

Answer:

Total Mass=80+20=100 kg

Tien=5 sec

Height =10 m

Angle=60

so

W= Fs cos theta

W=m×g×h× cos 60

W= 100×10×10×1/2 (cos 60 =1/2)

=5000 J

Power =Work/Time

P=5000/5=1000 watt

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