If a clockwise moment of MA - 129N-m is needed to tighten the nut at A.docx

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If a clockwise moment of M A = 129N?m is needed to tighten the nut at A and the extension d = 330mm , determine the required force F in order to develop this moment. Express your answer to three significant figures and include the appropriate units. The connected bar B C is used to increase the lever arm of the crescent wrench as shown If a clockwise moment of MA = 129N?m is needed to tighten the nut at A and the extension d = 330mm , determine the required force F in order to develop this moment. Express your answer to three significant figures and include the appropriate units. The connected bar BC is used to increase the lever arm of the crescent wrench as shown Solution The torque is a measure of the force acting perpendicular to a radial line running from the pivot point. Ma = Fe(AC) where Ma is the Torque Fe is the effective force acting perpendicular to AC AC is the length of the radial from the pivot to the point of effective force. AC can be found using the law of cosines AC = ?(0.300 .

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