tailieunhanh - Engineering Mechanics - Statics Episode 3 Part 4

Tham khảo tài liệu 'engineering mechanics - statics episode 3 part 4', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Engineering Mechanics - Statics Chapter 9 Solution Volume and Moment Arm From the geometry b x b c-z c - z c c y a y a c - z c c - z c The volume of the thin disk differential element is dV n c - z c - z dz cc c zn- c - z c - z dz c c J0 zc ----------------------- c n c - z c - z dz c c J0 Problem 9-39 Locate the center of gravity zc of the frustum of the material is homogeneous. Given a 1m b m c m Solution fa V J n b - - b - c2 _ a _ 0 dz zc ft 922 2007 R. C. Hibbeler. Published by Pearson Education Inc. Upper Saddle River NJ. All rights reserved. This material is protected under all copyright laws as they currently exist. No portion of this material may be reproduced in any form or by any means without permission in writing from the publisher. Engineering Mechanics - Statics Chapter 9 zc 1 1 zn b - L t - V . a _ 0 dz zc m Problem 9-40 Locate the center of gravity yc of the volume. The material is homogeneous. Given a 25 mm c 50 mm d 50 mm Solution ợc d V dy 1 yc V dy yc mm c Problem 9-41 Locate the center of gravity for the homogeneous half-cone. 923 2007 R. C. Hibbeler. Published by Pearson Education Inc. Upper Saddle River NJ. All rights reserved. This material is protected under all copyright laws as they currently exist. No portion of this material may be reproduced in any form or by any means without permission in writing from the .