55 ILW In Fig, 8-51, a block of mass m 25kg slides head on into a spring of spring constant k 320 N'm. When the block stops, it has compressed the spring by 7.5 cm. The cocfficicnt of ki- netic friction between block and floor is 0.25 While the block is in contact with the spring and being brought to rest, what are (a) the work done by the spring force and (b) the increase in thermal en- ergy of the block-floor system? (c) What is the block's speed just as it reaches the spring? Fig. 8-51 Problem 55

55 ILW In Fig, 8-51, a block of mass m 25kg slides head on into a spring of spring constant k 320 N'm. When the block stops, it has compressed the spring by 7.5 cm. The cocfficicnt of ki- netic friction between block and floor is 0.25 While the block is in contact with the spring and being brought to rest, what are (a) the work done by the spring force and (b) the increase in thermal en- ergy of the block-floor system? (c) What is the block's speed just as it reaches the spring? Fig. 8-51 Problem 55

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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Question

55 ILW In Fig, 8-51, a block of mass m 25kg slides head on
into a spring of spring constant k 320 N'm. When the block
stops, it has compressed the spring by 7.5 cm. The cocfficicnt of ki-
netic friction between block and floor is 0.25 While the block is in
contact with the spring and being brought to rest, what are (a) the
work done by the spring force and (b) the increase in thermal en-
ergy of the block-floor system? (c) What is the block's speed just
as it reaches the spring?
Fig. 8-51 Problem 55

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