Chapter14.docx<\/p>\n
Chapter 14:\u00a0 Work, Energy, and Power
\u00b7 Section: Problems
\u00b7 14-56
A gear with a mass moment of inertia of 0.45 kg\u22c5m2 has a kinetic energy of rotation of 21 joules. What is its speed of rotation in rpm?
92.3 rpm
\u00b7 14-63
Wheel A in Figure P14\u201363 weighs 200 lb and has a radius of gyration of 2 ft. If the system is initially at rest, determine the angular velocity of A after B has dropped 8 ft. <\/p>\n
\u00b7 14-64
Masses A and B in Figure P14\u201364 are fastened together by a belt over pulley D. (Assume no slipping of the belt.) The mass moment of inertia of pulley D is 15 kg\u22c5m2. How far does mass B drop before reaching a velocity of 2 m\/s? The system is initially at rest.<\/p>\n
1.07 m
Chapter 15:\u00a0 Impulse and Momentum
\u00b7 Section: Problems
\u00b7 15-11
Determine the force required to bring an 8-ton truck traveling at 50 mph to rest in 5 seconds. How far does it travel?
7290 lb 183 ft
\u00b7 15-17
The rotor of an electric motor turns at 1750 rpm, weighs 150 lb, and has a radius of gyration of 9.5 in. Determine (a) the angular momentum at 1750 rpm and (b) the torque required to slow the rotor to 800 rpm in 2 seconds.
535 lb-s 145 lb-ft
\u00b7 15-32
A 4-kg rifle firing an 8-g bullet at 650 m\/s obeys the law of conservation of momentum. Determine the recoil speed of the rifle.
1.3 m\/s
\u00b7 15-43
Disc A in Figure P15\u201343 (IC = 8 kg \u22c5 m2), while rotating at 100 rpm, is lowered onto disc B (IC = 10.5 kg \u22c5 m2), causing the latter to rotate from rest. Assume no slipping and determine the angular velocity of B.<\/p>\n
35.5 rpm<\/p>\n
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Chapter14.docx Chapter 14:\u00a0 Work, Energy, and Power \u00b7 Section: Problems \u00b7 14-56 A gear with a mass moment of inertia of 0.45 kg\u22c5m2 has a kinetic energy of rotation of 21 joules. What is its speed of rotation in rpm? 92.3 rpm \u00b7 14-63 Wheel A in Figure P14\u201363 weighs 200 lb and has a … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-37674","post","type-post","status-publish","format-standard","hentry","category-essaywr"],"_links":{"self":[{"href":"https:\/\/academicwritersbay.com\/writings\/wp-json\/wp\/v2\/posts\/37674","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/academicwritersbay.com\/writings\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/academicwritersbay.com\/writings\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/academicwritersbay.com\/writings\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/academicwritersbay.com\/writings\/wp-json\/wp\/v2\/comments?post=37674"}],"version-history":[{"count":0,"href":"https:\/\/academicwritersbay.com\/writings\/wp-json\/wp\/v2\/posts\/37674\/revisions"}],"wp:attachment":[{"href":"https:\/\/academicwritersbay.com\/writings\/wp-json\/wp\/v2\/media?parent=37674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/academicwritersbay.com\/writings\/wp-json\/wp\/v2\/categories?post=37674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/academicwritersbay.com\/writings\/wp-json\/wp\/v2\/tags?post=37674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}