A person having a mass of 80 kg carrying a load of 20 kg climbed on a ladder of 40m. The ladder was inclined with an angle of 40° with the roof of the building. Calculate the work done by the person.
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Hey, there!
Here's your answer.
In the figure (in the attachment),
sin(40°) = h/40
h = 40sin(40°) = 40 × 0.642 = 25.71m
So, work done (W) = mgh
W = (80 + 20) × 10 × 25.71
= 100 × 10 × 25.71
= 25710 J
Hope that helps.
Thanks.
Here's your answer.
In the figure (in the attachment),
sin(40°) = h/40
h = 40sin(40°) = 40 × 0.642 = 25.71m
So, work done (W) = mgh
W = (80 + 20) × 10 × 25.71
= 100 × 10 × 25.71
= 25710 J
Hope that helps.
Thanks.
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