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Equilibrium 16. A 70-kg uniform board 2.8 m long is supported by a pivot 110 cm from the left end and by a scale at the right end (Fig. 12.14). How far from the left end should a 30-kg child sit for the scale to read zero?

Equilibrium 16. A 70-kg uniform board 2.8 m long is supported by a pivot 110 cm from the left end and by a scale at the right end (Fig. 12.14). How far from the left end should a 30-kg child sit for the scale to read zero?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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238 Chapter 12 Static Equilibrium Section 12.3 Examples of Static Equilibrium 16./ A 70-kg uniform board 2.8 m long is supported by a pivot 110 cm from the left end and by a scale at the right end (Fig. 12.14). How far 23. from the left end should a 30-kg child sit for the scale to read zero? 24 000 FIGURE 12.14 Exercises 16 and 17 25 17. Where should the child in Fig. 12.14 sit if the scale is to read (a) 90 N and (b) 220 N? 18. A 4.2-m-long beam is supported by a cable at its center. A 65- kg steelworker stands at one end of the beam. Where should a
Transcribed Image Text:238 Chapter 12 Static Equilibrium Section 12.3 Examples of Static Equilibrium 16./ A 70-kg uniform board 2.8 m long is supported by a pivot 110 cm from the left end and by a scale at the right end (Fig. 12.14). How far 23. from the left end should a 30-kg child sit for the scale to read zero? 24 000 FIGURE 12.14 Exercises 16 and 17 25 17. Where should the child in Fig. 12.14 sit if the scale is to read (a) 90 N and (b) 220 N? 18. A 4.2-m-long beam is supported by a cable at its center. A 65- kg steelworker stands at one end of the beam. Where should a
238 Chapter 12 Static Equilibrium Section 12.3 Examples of Static Equilibrium ul 16. A 70-kg uniform board 2.8 m long is supported by a pivot 110 cm driveway is make with t from the left end and by a scale at the right end (Fig. 12.14). How far 23. Example 1 from the left end should a 30-kg child sit for the scale to read zero? clined at 70 the coeffici the ground mass 68.8 k 24. Example 1 224-kg log Fig. 12.16. way along and grounc which the FIGURE 12.14 Exercises 16 and 17 shown, half 25. Example 1 angle o in Will the clir 6. 17. Where should the child in Fig. 12.14 sit if the scale is to read (a) 90 N and (b) 220 N?
Transcribed Image Text:238 Chapter 12 Static Equilibrium Section 12.3 Examples of Static Equilibrium ul 16. A 70-kg uniform board 2.8 m long is supported by a pivot 110 cm driveway is make with t from the left end and by a scale at the right end (Fig. 12.14). How far 23. Example 1 from the left end should a 30-kg child sit for the scale to read zero? clined at 70 the coeffici the ground mass 68.8 k 24. Example 1 224-kg log Fig. 12.16. way along and grounc which the FIGURE 12.14 Exercises 16 and 17 shown, half 25. Example 1 angle o in Will the clir 6. 17. Where should the child in Fig. 12.14 sit if the scale is to read (a) 90 N and (b) 220 N?
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