ll Sprint O i 82% 12:35 AM X Copy of Beer,Joh... 4.8 Two external shafts of a gearbox are subject to the torques (or moments) shown. Determine the vertical components of the forces that must be exerted by the bolts at A and B to maintain the gearbox in equilibrium 600 lb ft 100 lb-ft 7.5 KN B ус E A 30 in В Fig. P4.8 1.5 m 0.5 m 0.75 m 0.75 m 4.9 Three loads are applied as shown to a light beam supported by cables attached at B and D. Neglecting the weight of the beam, determine the range of values of Q for which neither cable becomes slack when P = 0. Fig. P4.9 20 kN 4.10 The 10-m beam AB rests upon, but is not attached to, supports at C and D. Neglecting the weight of the beam, determine the range of values of P for which the beam will remain in equilibrium. A В С D 4.11 The maximum allowable value of each of the reactions is 50 kN, and 2 m 3 m 3 m 2 m each reaction must be directed upward. Neglecting the weight of the beam, determine the range of values of P for which the beam is safe Fig. P4.10 and P4.11 4.12 For the beam of Sample Prob. 4.2, determine the range of values of P for which the beam will be safe, knowing that the maximum allowab le value of each of the reactions is 25 kips and that the reaction at A must be directed upward. 150 N 50 N 100 N OA 4.13 The maximum allowable value of each of the reactions is 180 N Neglecting the weight of the beam, determine the range of the dis tance d for which the beam is safe |В 450 mm 450 mm 4.14 For the beam and loading shown, determine the range of the distance Fig. P4.13 a for which the reaction at B does not exceed 100 lb downward or 200 lb upward 300 lb 300 lb -6 in.- B A D C 50 lb 8 in 12 in 4 in 75 mm, Fig. P4.14 300 mm A 4.15 The required tension in cable AB is 1200 N. Determine (a) the vertical force P that must be applied to the pedal, (b) the corresponding reac- tion at C 125 mm 4.16 Determine the maximum tension that can be developed in cable AB if the maximum allowable value of the reaction at C is 2.6 kN. Fig. P4.15 and P4.16 4.17 Two links AB and DE are connected by a bell crank as shown 150 lb, determine (a) the ten- Fill out form EU 4.5 in 3 in 90°

Question

Confused about #9. I’ve circled the question and diagram. 

ll Sprint
O i 82%
12:35 AM
X
Copy of Beer,Joh...
4.8 Two external shafts of a gearbox are subject to the torques (or moments)
shown. Determine the vertical components of the forces that must be
exerted by the bolts at A and B to maintain the gearbox in equilibrium
600 lb ft
100 lb-ft
7.5 KN
B
ус
E
A
30 in
В
Fig. P4.8
1.5 m
0.5 m 0.75 m
0.75 m
4.9 Three loads are applied as shown to a light beam supported by cables
attached at B and D. Neglecting the weight of the beam, determine the
range of values of Q for which neither cable becomes slack when P = 0.
Fig. P4.9
20 kN
4.10 The 10-m beam AB rests upon, but is not attached to, supports at C
and D. Neglecting the weight of the beam, determine the range of
values of P for which the beam will remain in equilibrium.
A
В
С
D
4.11 The maximum allowable value of each of the reactions is 50 kN, and
2 m
3 m
3 m
2 m
each reaction must be directed upward. Neglecting the weight of the
beam, determine the range of values of P for which the beam is safe
Fig. P4.10 and P4.11
4.12 For the beam of Sample Prob. 4.2, determine the range of values of P
for which the beam will be safe, knowing that the maximum allowab le
value of each of the reactions is 25 kips and that the reaction at A must
be directed upward.
150 N
50 N
100 N
OA
4.13 The maximum allowable value of each of the reactions is 180 N
Neglecting the weight of the beam, determine the range of the dis
tance d for which the beam is safe
|В
450 mm
450 mm
4.14 For the beam and loading shown, determine the range of the distance
Fig. P4.13
a for which the reaction at B does not exceed 100 lb downward or
200 lb upward
300 lb
300 lb
-6 in.-
B
A
D
C
50 lb
8 in
12 in
4 in
75 mm,
Fig. P4.14
300 mm
A
4.15 The required tension in cable AB is 1200 N. Determine (a) the vertical
force P that must be applied to the pedal, (b) the corresponding reac-
tion at C
125 mm
4.16 Determine the maximum tension that can be developed in cable AB if
the maximum allowable value of the reaction at C is 2.6 kN.
Fig. P4.15 and P4.16
4.17 Two links AB and DE are connected by a bell crank as shown
150 lb, determine (a) the ten-
Fill out form
EU 4.5 in
3 in
90°

Image Transcription

ll Sprint O i 82% 12:35 AM X Copy of Beer,Joh... 4.8 Two external shafts of a gearbox are subject to the torques (or moments) shown. Determine the vertical components of the forces that must be exerted by the bolts at A and B to maintain the gearbox in equilibrium 600 lb ft 100 lb-ft 7.5 KN B ус E A 30 in В Fig. P4.8 1.5 m 0.5 m 0.75 m 0.75 m 4.9 Three loads are applied as shown to a light beam supported by cables attached at B and D. Neglecting the weight of the beam, determine the range of values of Q for which neither cable becomes slack when P = 0. Fig. P4.9 20 kN 4.10 The 10-m beam AB rests upon, but is not attached to, supports at C and D. Neglecting the weight of the beam, determine the range of values of P for which the beam will remain in equilibrium. A В С D 4.11 The maximum allowable value of each of the reactions is 50 kN, and 2 m 3 m 3 m 2 m each reaction must be directed upward. Neglecting the weight of the beam, determine the range of values of P for which the beam is safe Fig. P4.10 and P4.11 4.12 For the beam of Sample Prob. 4.2, determine the range of values of P for which the beam will be safe, knowing that the maximum allowab le value of each of the reactions is 25 kips and that the reaction at A must be directed upward. 150 N 50 N 100 N OA 4.13 The maximum allowable value of each of the reactions is 180 N Neglecting the weight of the beam, determine the range of the dis tance d for which the beam is safe |В 450 mm 450 mm 4.14 For the beam and loading shown, determine the range of the distance Fig. P4.13 a for which the reaction at B does not exceed 100 lb downward or 200 lb upward 300 lb 300 lb -6 in.- B A D C 50 lb 8 in 12 in 4 in 75 mm, Fig. P4.14 300 mm A 4.15 The required tension in cable AB is 1200 N. Determine (a) the vertical force P that must be applied to the pedal, (b) the corresponding reac- tion at C 125 mm 4.16 Determine the maximum tension that can be developed in cable AB if the maximum allowable value of the reaction at C is 2.6 kN. Fig. P4.15 and P4.16 4.17 Two links AB and DE are connected by a bell crank as shown 150 lb, determine (a) the ten- Fill out form EU 4.5 in 3 in 90°

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