Strength of Materials - Civil Engineering - Civil Engineering Questions and Answers

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The effort required to lift a load W on a screw jack with helix angle a and angle of friction<="" div="">

Wtan(a + <)>)

Wtan(a-<)>)

Wcos(a + )

Wsin(a + <(>)

Answer : Option A

Explanation :

Explanation Not Provided

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