A 3-m board of mass 5 kg is hinged at one end. A force F is applied

Question:

A 3-m board of mass 5 kg is hinged at one end. A force F is applied vertically at the other end to lift a 60-kg block, which rests on the board 80 cm from the hinge, as shown in Figure.

(a) Find the magnitude of the force needed to hold the board stationary at q = 30^o.

(b) Find the force exerted by the hinge at this angle.

(c) Find the magnitude of the force F and the force exerted by the hinge if F is exerted perpendicular to the board when q = 30^o.

80 cm 3 m 30 the

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Fundamentals of Ethics for Scientists and Engineers

ISBN: 978-0195134889

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Authors: Edmund G. Seebauer, Robert L. Barry

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Question Posted: Jul 12, 2011 10:08 AM

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A 3-m board of mass 5 kg is hinged at one end. A force F is applied

Question:

80 cm 3 m 30 the

Step by Step Answer:

a Applying 0 about the hinge cos 30 o factors cancel 3 F 08 6...View the full answer

Fundamentals of Ethics for Scientists and Engineers

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