E1 SITUATION. Personal Space Person of mass 'm' walks on a plank resting on rough surfaces Aand B.Given: m = 120 kgCoefficient of friction at A = 0.40L= 4 mCoefficient of friction at B = 0.20x= 30°L.At what distance 'x' will the plank start to slide?2.33m1.69m1.62m2.29mWhat is the friction force at A, in N?O 135.6O 98.6256.7186.7 Find the vertical force at B, in N?O 493NO 684N235N348N

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SITUATION. Personal Space Person of mass 'm' walks on a plank resting on rough surfaces A and B. Given: m = 120 kg Coefficient of friction at A = 0.40 L = 4 m Coefficient of friction at B = 0.20 x= 30° B L At what distance 'x' will the plank start to slide? 2.33m 1.69m 1.62m O 2.29m

SITUATION. Personal Space Person of mass 'm' walks on a plank resting on rough surfaces A and B. Given: m = 120 kg Coefficient of friction at A = 0.40 L = 4 m Coefficient of friction at B = 0.20 x= 30° B L At what distance 'x' will the plank start to slide? 2.33m 1.69m 1.62m O 2.29m

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

SITUATION. Personal Space Person of mass 'm' walks on a plank resting on rough surfaces A
and B.
Given: m = 120 kg
Coefficient of friction at A = 0.40
L= 4 m
Coefficient of friction at B = 0.20
x= 30°
L.
At what distance 'x' will the plank start to slide?
2.33m
1.69m
1.62m
2.29m
What is the friction force at A, in N?
O 135.6
O 98.6
256.7
186.7

Find the vertical force at B, in N?
O 493N
O 684N
235N
348N

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