Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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Transcribed Image Text:The block shown in (Figure 1) has a mass of m =
90 kg, a height H = 1.8 m, and width L = 2.4 m.
It is resting on a ramp that makes an angle = 23°
with the horizontal. A force P is applied parallel to
the surface of the ramp at the top of the block.
What is the maximum force that can be applied
without causing the block to move? The coefficient
of static friction is us = 0.41, and the center of
mass of the block is at the center of the rectangle.
Figure
8
H
<
1 of 2
Part D
Use the free-body diagram shown in (Figure 2) and write the equilibrium equation for the moments about the point of contact.
Express your answer in terms of one or more of P, W, H, L, N, F, and 0.
Σ Μo = 0 =
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Part E
Ptip
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What is the maximum magnitude of P that can be applied before tipping would occur, assuming the block does not slip?
Express your answer to three significant figures with appropriate units.
Part F
Pmax =
Submit
ΑΣΦ
Value
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Value
↓↑
What is the maximum magnitude of P that does not cause motion of the block?
Express your answer to three significant figures with appropriate units.
vec
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Units
?
Units
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