The two objects in the figure below are balanced on the pivot, with m = 1.3 kg. What is the distance d?

picture http://www.webassign.net/knight/p13-27alt.gif

Answer 1

d = Xcm = ΣMom/Σmass = (4*1.5+1.3*1)/(4+1.3) = 1.377 m

Source(s): Free body diagram

Answer 2

Sum of torques about pivot = 0/g = 0:

(d-1)1.3 = (2-0.5 – d)4
d = 1.38 m answer

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