QUIZ 9-4.9 Fundamental Problem 4.38 Determine the resultant force and specify wh

Question

QUIZ 9-4.9 Fundamental Problem 4.38 Determine the resultant force and specify where it acts on the beam measured from A. Assume p 210 lb/ft (Figure 1) Part A Determine the magnitude of the resultant force. Express your answer to three significant figures and include the appropriate units FR Value Units Submit Request Answer Part B Determine the distance between A and the resultant's line of action. Express your answer to three significant figures and include the appropriate units Figure 1 of 1> d 6.1818 ft Submit Previous Answers Request Answer 6 ft 8 ft X Incorrect; Try Again; 5 attempts remaining Provide Feedback

Explanation / Answer

a )

given

p = 210 lb/ft

the resultant R is

FR = 1/2 X 210 X 6 + 210 X 8

FR = 630 + 1680

FR = 2310 lbs

b )

to calculate x value

2310 X d = 630 X 4 + 1680 X 10

d = (630 X 4 + 1680 X 10) / 2310

d = 8.3636 ft

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