978-0073398242 Chapter 8 Solution Manual Part 7

subject Type Homework Help
subject Pages 9
subject Words 1232
subject Authors Brian Self, David Mazurek, E. Johnston, Ferdinand Beer, Phillip Cornwell

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page-pf1
PROBLEM 8.46
Two slender rods of negligible weight are pin-connected at C and
attached to blocks A and B, each of weight W. Knowing that
80
and that the coefficient of static friction between the
blocks and the horizontal surface is 0.30, determine the largest
value of P for which equilibrium is maintained.
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PROBLEM 8.46 (Continued)
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PROBLEM 8.47
Two slender rods of negligible weight are pin-connected at C and
attached to blocks A and B, each of weight W. Knowing that
P 1.260W and that the coefficient of static friction between the
blocks and the horizontal surface is 0.30, determine the range of
values of θ, between 0 and 180°, for which equilibrium is
maintained.
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PROBLEM 8.47 (Continued)
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PROBLEM 8.48
The machine part ABC is supported by a frictionless hinge at
B and a 10 wedge at C. Knowing that the coefficient of
static friction is 0.20 at both surfaces of the wedge,
determine (a) the force P required to move the wedge to the
left, (b) the components of the corresponding reaction at B.
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PROBLEM 8.48 (Continued)
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PROBLEM 8.49
Solve Prob. 8.48 assuming that the wedge is moved to the
right.
PROBLEM 8.48
The machine part ABC is supported by a frictionless hinge at
B and a 10 wedge at C. Knowing that the coefficient of
static friction is 0.20 at both surfaces of the wedge,
determine (a) the force P required to move the wedge to the
left, (b) the components of the corresponding reaction at B.
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PROBLEM 8.49 (Continued)
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PROBLEM 8.50
Two 8 wedges of negligible weight are used to move and position the
800-kg block. Knowing that the coefficient of static friction is 0.30 at all
surfaces of contact, determine the smallest force P that should be applied
as shown to one of the wedges.
page-pfa
PROBLEM 8.51
Two 8 wedges of negligible weight are used to move and position the
800-kg block. Knowing that the coefficient of static friction is 0.30 at all
surfaces of contact, determine the smallest force P that should be applied
as shown to one of the wedges.

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