The effort '' to be applied horizontally to pull a weight '' on a plane inclined at an angle α with the horizontal is given by (tan θ is the coefficient of friction)

The effort '' to be applied horizontally to pull a weight '' on a plan

1.	The effort '' to be applied horizontally to pull a weight '' on a plane inclined at an angle α with the horizontal is given by (tan θ is the coefficient of friction)
A.	=
B.	tan (α + θ)
C.	=
D.	tan (α - θ)
Answer» B. tan (α + θ)

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The effort '' to be applied horizontally to pull a weight '' on a plane inclined at an angle α with the horizontal is given by (tan θ is the coefficient of friction)

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