Consider the three masses A, B and C, respectively 1 kg, 1 kg and 5 kg, connected through the system of pulleys as shown below. D and E are frictionless, stationary pulleys. Masses A and B are resting on an inclined surface (0 = 60°), where the coefficient of kinetic friction between the masses and the surface is given by k = 0.5. Gravity acts down. 1 kg 1 kg pk = 0.5 E 5 kg xC (a) By analysing appropriate free-body diagrams, show that c~ 4.39 ms-². (b) By analysing an appropriate free-body diagram, calculate the tension between masses A and B.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
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ChapterMA: Math Assessment
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A 300-mm cantilever beam BC with uniform cross section A-A is supporting an inclined 225-N force
acting on the top of the beam at C as shown below.
Y
B
A4
A+
225 N
300 mm
3
X
10 mm
30 mm
10 mm
Section A-A
2←
y
-10 mm
30 mm
(a) Show that the second moment of area about the neutral axis of the cross section A-A is given by
I = 267 500 mm 4.
(b) Draw and label the normal-force, shear-force and bending-moment diagrams for the beam by
analysing an appropriate free-body diagram.
(c) Determine the maximum magnitude and y location of the normal stress at B (x
whether it is compressive or tensile.
=
0). State
Transcribed Image Text:A 300-mm cantilever beam BC with uniform cross section A-A is supporting an inclined 225-N force acting on the top of the beam at C as shown below. Y B A4 A+ 225 N 300 mm 3 X 10 mm 30 mm 10 mm Section A-A 2← y -10 mm 30 mm (a) Show that the second moment of area about the neutral axis of the cross section A-A is given by I = 267 500 mm 4. (b) Draw and label the normal-force, shear-force and bending-moment diagrams for the beam by analysing an appropriate free-body diagram. (c) Determine the maximum magnitude and y location of the normal stress at B (x whether it is compressive or tensile. = 0). State
Consider the three masses A, B and C, respectively 1 kg, 1 kg and 5 kg, connected through the system
of pulleys as shown below. D and E are frictionless, stationary pulleys. Masses A and B are resting
on an inclined surface (0 = 60°), where the coefficient of kinetic friction between the masses and the
surface is given by μ = 0.5. Gravity acts down.
1 kg
1 kg
|º
Mk = 0.5
O
5 kg
XC
(a) By analysing appropriate free-body diagrams, show that ïc ≈ 4.39 ms¯²
(b) By analysing an appropriate free-body diagram, calculate the tension between masses A and B.
Transcribed Image Text:Consider the three masses A, B and C, respectively 1 kg, 1 kg and 5 kg, connected through the system of pulleys as shown below. D and E are frictionless, stationary pulleys. Masses A and B are resting on an inclined surface (0 = 60°), where the coefficient of kinetic friction between the masses and the surface is given by μ = 0.5. Gravity acts down. 1 kg 1 kg |º Mk = 0.5 O 5 kg XC (a) By analysing appropriate free-body diagrams, show that ïc ≈ 4.39 ms¯² (b) By analysing an appropriate free-body diagram, calculate the tension between masses A and B.
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