15 The top view of a revolving entrance door is shown. 0.8 m Two persons simultaneously approach the door and exert forces of equal magnitudes as shown. If the resulting moment about the door pivot axis at a is 25 N .m, determine the force 0.8 m magnitude F from the following answers which of them is correct: 15

International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter4: Coplanar Equilibrium Analysis
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Problem 4.21P: The 1200-lb homogeneous block is placed on rollers and pushed up the 10 incline at constant speed....
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15
The top view of a revolving entrance
door is shown.
0.8 m
Two persons simultaneously approach
the door and exert forces of equal
magnitudes as shown. If the resulting
moment about the door pivot axis at
a is 25 N .m, determine the force
magnitude F from the following
answers which of them is correct:
0.8 m
15
O M = 16.18 N.m
O M = 18.16 N.m
M = 0 N.m
O M = 161.8 N.m
M = 181.16 N.m
Transcribed Image Text:15 The top view of a revolving entrance door is shown. 0.8 m Two persons simultaneously approach the door and exert forces of equal magnitudes as shown. If the resulting moment about the door pivot axis at a is 25 N .m, determine the force magnitude F from the following answers which of them is correct: 0.8 m 15 O M = 16.18 N.m O M = 18.16 N.m M = 0 N.m O M = 161.8 N.m M = 181.16 N.m
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