what should be the angle between the force and the displacement for maximum and minimum work? CLASS - XI PHYSICS (Work, Energy and Power)
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For maximum work, angle between the force and displacement should be 0 degree and for minimum work,angle between force and displacement should be 180 degree.
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Work done on a body=force applied to the body*displacement of the body*cos∅,where ∅=angle between the direction of application of the force and the direction of displacement of the body.We might also say,in vectors,that work done is the dot product of the force applied and displacement of the body.
As we know,cos∅ is maximum when ∅=0° and minimum when ∅=90°,work done will be maximum when force and displacement make zero degrees or are in the same direction.Likewise work done will be zero when the force applied and displacement make 90 degrees or are perpendicular to each other.
As we know,cos∅ is maximum when ∅=0° and minimum when ∅=90°,work done will be maximum when force and displacement make zero degrees or are in the same direction.Likewise work done will be zero when the force applied and displacement make 90 degrees or are perpendicular to each other.
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