Question
Asked Sep 19, 2019
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Suppose you use an ideal pulley of the type shown in Figure 5.18(b) and find it necessary to exert a force of 150 N to support a load.


Figure 5.18

(a) What is the load's mass?
 kg
(b) What force is exerted on the ceiling? Neglect the pulley system's mass.
 N (upward)

T
T
MA 2
MA 4
MA 3
TTTT
T
१।
T
T
T
T
T
TT
4
w
(c)
(b)
(a)
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T T MA 2 MA 4 MA 3 TTTT T १। T T T T T TT 4 w (c) (b) (a)

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Expert Answer

Step 1

Write the expression for net force acti...

From Fig 5.18 (b)
3T mg
mg
Т
3
3Т
m
g
3x150N
9.8m/s2
= 45.91kg
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From Fig 5.18 (b) 3T mg mg Т 3 3Т m g 3x150N 9.8m/s2 = 45.91kg

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