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Unformatted text preview: l dimensions are in cm. GNG 1100 - ENGINEERING MECHANICS
17 December 2002
Profs. Droste, Hallett and Skaff
3. (12 marks) Block A weighs 195 N and block
C weighs 120 N. The coefficient of friction between
each block and the horizontal surface is S =
0.3. All joints are pinned, and bars AB and BC
are of negligible weight. The applied force P is
(a) Write the force in BA and the force in BC as
functions of P. Hint: you may take point B as a
free -bod y.
(b) Find the magnitude of the applied load P for
which motion will impend....
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This document was uploaded on 03/20/2014.
- Fall '14