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If the center of gravity of the stacked tables is at G, and the stack weighs 100 lb, determine the
smallest force P the boy must push on the stack in order to cause movement. The coefficient of static
friction at A and B is µs = 0.30. The tables are locked together.
30°
3.5 ft
3 ft
A
B
-2 ft-2 ft-
3.

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