Question

C W 3 m D A 0.6 m X 0.6 m Z B 0.9 m 0.3 m

          C
W
3 m
D
A
0.6 m
X
0.6 m
Z
B
0.9 m
0.3 m

Added by Anthony B.

Physics for Scientists and Engineers with Modern Physics

Raymond A. Serway, John W. Jewett, Jr. 8th Edition

Chapter 12

Instant Answer

Solved by Expert Adi S

06/15/2023

Step 1

- The total weight \( W \) of the ladder and person is \( (20 + 80) \times 9.81 = 981 \, \text{N} \). - The line of action of \( W \) intersects the floor at point D. - The distances given are: BC = 0.6 m, X = 0.3 m, and the total length from A to C is 0.9 m. Show more…

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A 20-kg ladder used to reach high shelves in a storeroom is supported by two flanged wheels A and B mounted on a rail and by an unflanged wheel C resting against a rail fixed to the wall. An 80-kg person stands on the ladder and leans to the right. The line of action of the combined weight W of the person and ladder intersects the floor at point D. Determine the reactions at A, B, and C. (Partial answer: A=245j-98.1k) Please include FBD (FREE BODY DIAGRAM) if possible.