A former student of mechanics wishes to weigh himself but has access only to a scale A with capacity limited to 400 N and a small 80 N spring dynamometer B. With the rig shown he discovers that when he exerts a pull on the rope so that B registers 76 N, the scale A reads 286 N. What is his correct weight? Final solution W = 666 N FB = 67.9 kg A B
A former student of mechanics wishes to weigh himself but has access only to a scale A with capacity limited to 400 N and a small 80 N spring dynamometer B. With the rig shown he discovers that when he exerts a pull on the rope so that B registers 76 N, the scale A reads 286 N. What is his correct weight? Final solution W = 666 N FB = 67.9 kg A B
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter10: Virtual Work And Potential Energy
Section: Chapter Questions
Problem 10.25P
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Question

Transcribed Image Text:A former student of mechanics wishes to weigh himself
but has access only to a scale A with capacity limited
to 400 N and a small 80 N spring dynamometer
B. With the rig shown he discovers that when he exerts
a pull on the rope so that B registers 76 N, the
scale A reads 286 N.
What is his correct weight?
Final solution
W = 666 N
FB = 67.9 kg
A
B
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