05_InstSolManual_PDF_Part1

05_InstSolManual_PDF_Part1 - APPLICATIONS OF NEWTONS LAWS 5...

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5-1 A PPLICATIONS OF N EWTON S L AWS 5 Answers to Multiple-Choice Problems 1. A 2. D 3. B 4. D 5. A 6. A 7. A 8. B 9. A 10. C 11. C 12. B 13. D Solutions to Problems 5.1. Set Up: Constant speed means Use coordinates where is upward. The breaking strength for the rope in each part is (a) 50 N, (b) 4000 N, and (c) The free-body diagram for the bucket plus its contents is given in Figure 5.1. Figure 5.1 Solve: gives so (a) so 35 N of cement. The mass of cement is 3.6 kg. (b) so 3985 N of cement. The mass of cement is 410 kg. (c) so of cement. The mass of cement is Reflect: Since
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