Question

A porter carries 100N load upto 50m distance, calculate his workdone

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

Consider the following,

work done is written as W = F.s = FsCosθ here F is the force applied, s is the displacement caused such that

F = mg = 10 X 10 = 100 N s

W( horizontal direction)= FsCos(0)=500J , θ is the angle between (vectors) F and s now,

as F and s are perpendicular for vertical direction, θ = 90 thus, W = FsCos90 = 0