Problem

A boy weighing 60.0 lb is playing on a plank. The plank weighs 30.0 lb, is uniform, is 8.0...

A boy weighing 60.0 lb is playing on a plank. The plank weighs 30.0 lb, is uniform, is 8.00 ft long, and lies on two supports, one 2.00 ft from the left end and the other 2.00 ft from the right end.

a) If the boy is 3.00 ft from the left end, what force is exerted by each support?

b) The boy moves toward the right end. How far can he go before the plank will tip?

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Solutions For Problems in Chapter 11

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