Question: Problem No . 7 ( Problem 3 . 1 , p 6 5 ) : A person exerts a force of 6 0 l b

Problem No.7(Problem 3.1, p65): A person exerts a force of 60lb perpendicular to the end of a 7-ft long pry bar. The fulcrum (axis of rotation) is 6ft from the end of the bar upon which the force is applied. Determine the following:
(a) Draw the free body diagram (Note: Replace weight of box by a force vector "B" acting down, i.e. south).(1 point)
(b) The moment (magnitude and direction in + or - sign) that develop due to 60lb force, in lb-ft, with respect to fulcrum. (1 point)
(c) The moment (magnitude and direction in + or - sign) that develop due to 60lb force, in lb-in, with respect to fulcrum (Notice change in units; 1ft=12 inch).(1 point)
(d) The moment (magnitude and direction in + or - sign) that develop due to 60lb force, in kip-ft, with respect to fulcrum (Notice change in units; 1kip=1000lb)(1 point)
(e) The moment (magnitude and direction in + or - sign) that develop due to 60lb force, in kip-in, with respect to fulcrum (Notice change in units)(1 point)
Problem No . 7 ( Problem 3 . 1 , p 6 5 ) : A

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