a 120 Kg car is being lowered slowly unto the dock usig the hoist A and winch C determine the force in cable AV for the positions
a 120 Kg car is being lowered slowly unto the dock usig the hoist A and winch C determine the force in cable AV for the positions
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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a 120 Kg car is being lowered slowly unto the dock usig the hoist A and winch C determine the force in cable AV for the positions

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Assignment No.
Mar 13
2:24 PM
SECTION
SUBJECT CODE
BESR 22
DESCRIPTION
STATICS OF RIGID BODIES
S.Y.
: 1
: 2.1.Components of a force
2.2. Resultant Of Three or More Concurrent Force System
ASSIGNMENT
TOPIC
Problem No. 01
A 120 N is at rest on a rough in a line making an angle of 20° with the horizontal.
The roller has a radius of 0.40 m. as indicated in the figure.
a. Calculate the force P that is required to push the roller at rest on the rough
incline surface.
b. Calculate the normal reaction at the point of contact between the roller and the
rough inclined surface.
c. Calculate the force P required to pull the roller at rest on the rough incline
surface.
120N
Problem No. 02
The 120 kg car is being lowered slowly unto the dock using the hoist A and winch
C.
a. Determine the force in cable AB for the position shown.
b. Determine the force in cable BC for the position shown.
c. If max. capacity of cable AB is 14 kN, determine the maximum weight that it
could support for the position shown.
Problem No. 03
The horizontal distance from A at one end of the river to frame Cat the other
end is 20 m. The cable carriers a load W=50 kN.
a. At what distance from A is the load W such that the tension is segment AD of
the cable is equal to that in segment CD.
b. When the load W is at distance x, = 5 m. from A, the sag in the cable is 1 m.
Calculate the tension in segment DC of the cable.
c. If the sag in the cable is 1 m. at a distance x, = 5m. What is the total length of
the cable
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Problem No. 04
A cage for transporting workers and supplies on a construction site is hoisted by
a crane as shown. The floor of the cage is rectangular with dimensions 1.8 m. x
2.4 m. x 0.6 m . Each of the four lifting cables is attached to a corner of the cage

Transcribed Image Text:2:24
O 3.00
KB/S
ll 91%
Assignment No. 1
SECTION
: BESR 22
: STATICS OF RIGID BODIES
SUBJECT CODE
DESCRIPTION
S.Y.
:
ASSIGNMENT
1
: 2.1.Components of a force
2.2. Resultant Of Three or More Concurrent Force System
TOPIC
Problem No. 01
A 120 N is at rest on a rough in a line making an angle of 20° with the horizontal.
The roller has a radius of 0.40 m. as indicated in the figure.
a. Calculate the force P that is required to push the roller at rest on the rough
incline surface.
b. Calculate the normal reaction at the point of contact between the roller and the
rough inclined surface.
c. Calculate the force P required to pull the roller at rest on the rough incline
surface.
120 N
30
Problem No. 02
The 120 kg car is being lowered slowly unto the dock using the hoist A and winch
C.
a. Determine the force in cable AB for the position shown.
b. Determine the force in cable BC for the position shown.
c. If max. capacity of cable AB is 14 kN, determine the maximum weight that it
could support for the position shown.
5m
Problem No, 03
The horizontal distance from A at one end of the river to frame C at the other
end is 20 m. The cable carriers a load W=50 kN.
a. At what distance from A is the load W such that the tension is segment AD of
the cable is equal to that in segment CD.
b. When the load W is at distance x, = 5 m. from A, the sag in the cable is 1 m.
Calculate the tension in segment DC of the cable.
c. If the sag in the cable is 1 m. at a distance x, = 5m. What is the total length of
the cable
20m
Wid0 AN
Problem No. 04
A cage for transporting workers and supplies on a construction site is hoisted by
a crane as shown. The floor of the cage is rectangular with dimensions 1.8 m. x
2.4 m. x 0.6 m. Each of the four lifting cables is attached to a corner of the cage
and its contents is limited by regulations to 48 kN. The breaking stress of a cable
is 628 MPa and a factor of safety of3.5 with respect to failure is desired.
a. Compute the value of H.
b. Compute the force of one cable.
c. Compute the required area of a cable.
国目:
0.6
24 m
Problem No. 05
The hook is subjected to three forces A, B, & C as shown. A = 35 kN, B = 45 kN.
a. If the resultant of the forces is 80 kN and is acting along the positive x-axis, find
the angle a.
b. If a = 60°, what is the value of force C such that the resultant of forces A, B, and
C acts along the x-axis?
c. For the forces A,B, and C to be in equilibium, what is the magnitude of the
resulting force C?
A-35 kN
B45 KN
•..
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