A. 28.955° (B, 151.045° C. 30 D. 150° & 3. Two men are just able to lift up a 300 kg weight with a crow bar when the fulcrum for this lever is 0.3 m from the weight and the met: exerts their strengths at 0.9 and 1.5 nieters, respectively, from the fielcrum. Ifthe men interchange positions, they can raise a 340 kg weight. What force does each man exert? O 50 kg, 30 kg B. 40 kg, 20 kg C. 20 kg. 60 kg D. 30 kg, 40 kg REE Sep 2001/Sep. 2002 b 4A safe weighing 600lb is to be lowered at a constant speed down skids 8 t long from a truck 4 fi high. If ihe cuefiicient of shiding friction between safe and skid is 0.30, what will you do with the safe? (REE-Sep.2001) A. nothing 3. hold back C. prsh dawr D. lift safe tiow great a force paralle! to the plane is needed? (REE-Sep.2002) A. 140lbs. B. 142ibs. C. 146!bs. D. 144lbs.
A. 28.955° (B, 151.045° C. 30 D. 150° & 3. Two men are just able to lift up a 300 kg weight with a crow bar when the fulcrum for this lever is 0.3 m from the weight and the met: exerts their strengths at 0.9 and 1.5 nieters, respectively, from the fielcrum. Ifthe men interchange positions, they can raise a 340 kg weight. What force does each man exert? O 50 kg, 30 kg B. 40 kg, 20 kg C. 20 kg. 60 kg D. 30 kg, 40 kg REE Sep 2001/Sep. 2002 b 4A safe weighing 600lb is to be lowered at a constant speed down skids 8 t long from a truck 4 fi high. If ihe cuefiicient of shiding friction between safe and skid is 0.30, what will you do with the safe? (REE-Sep.2001) A. nothing 3. hold back C. prsh dawr D. lift safe tiow great a force paralle! to the plane is needed? (REE-Sep.2002) A. 140lbs. B. 142ibs. C. 146!bs. D. 144lbs.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Related questions
Question
No. 4 pls with the choices: 140lbs, 142lbs, 146lbs, and 144lbs.
Transcribed Image Text:A. 28.955
B. 151.045°
C. 30
D. 150°
A 3. Two men are just able to lift up a 300 kg weight with a crow bar when the fulcrum for this lever is 0.3 m from the weight and
the met: exerts their strengths at 0.9 and 1.5 eters, respectively, from the felcrum. Ifthe men interehange positions, they can
raise a 340 kg weight. What force does each man exert?
O 30 kg, 30 kg
B. 40 kg, 20 kg
C. 20 kg. 60 kg
D. 30 kg, 40 kg
REE Sen 2001/Sep. 2002
b 4. A safe weighing 600lb is to be lowered at a constant speed down skids 8 ft long from a truck 4 ft high. If ihe cueficient of
shiding friction between safe and skid is 0.30, what will you do with the safe? (REE-Sep.2001)
A. nothing
13 hold back
C. pesh dawr
D. lift safe
tiow great a force paralle! to the plane is needed? (REE-Sep.2002)
A. 140lbs.
B. 142lbs.
C. 146!bs.
D.144lbs.
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