Question

state the conditions under which the work done will be maximum and then it will be minimum

Answer 1

i)        Work done is maximum when Force & Displacement are in the same direction as θ = 0, implying W = FS Cos(0) = FS


ii)        Work done is minimum when the Force & Displacement are perpendicular to each other.


            W = FSCosθ = FSCos90 = FS(0) = Zero
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