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Solutions Manual for Statics and Mechanics of Materials 5th Edition by Hibbeler IBSN 9780134301006

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Full download http://goo.gl/rTKRQ1 Solutions Manual for Statics and Mechanics of Materials 5th Edition by Hibbeler IBSN 9780134301006 5th Edition, Hibbeler, Solutions Manual, Statics and Mechanics of Materials
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  23 © 2017 Pearson Education, Inc., Hoboken, 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. 2–2. If the magnitude of the resultant force is to be 500 N, directed along the positive  y  axis, determine the magnitude of force F  and its direction .  x y 700 N F u 15  SOLUTION   Ans: F   = 90 N = 45.2 ° The parallelogram law of addition and the triangular rule are shown in Figs. a and b ,respectively.Applying the law of cosines to Fig.  b, Ans. Applying the law of sines to Fig.  b ,and using this result,yields Ans. u  = 45.2°sin (90°  +  u )700  = sin 105°959.78  = 959.78 N  = 960 N F  =  2  500 2 + 700 2 - 2(500)(700) cos 105°   24 © 2017 Pearson Education, Inc., Hoboken, 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. 2–3. Determine the magnitude of the resultant force F R  = F 1  + F 2  and its direction, measured counterclockwise from the positive  x  axis.  yF  2     375 lb  xF  1     250 lb45  30  SOLUTION Ans.Ans. f  = 360°  - 45°  + 37.89°  = 353° u  = 37.89°393.2sin 75°  = 250sin u F R  =  2  (250) 2 + (375) 2 - 2(250)(375) cos 75°  = 393.2  = 393lb  Ans: F  R  = 393   lb f  = 353 °  25 © 2017 Pearson Education, Inc., Hoboken, 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. * 2–4. Determine the magnitudes of the two components of F  directed along members  AB  and  AC  . Set F   = 500 N. F C B A 30  45  SOLUTION  Parallelogram Law: The parallelogram law of addition is shown in Fig. a . Trigonometry: Using the law of sines (Fig. b ),we have Ans.Ans. 366 Nsin 45°500sin 75° 448 Nsin 60°500sin 75°  Ans: F   AB  = 448 N F   AC   = 366 N    26 © 2017 Pearson Education, Inc., Hoboken, 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. 2–5. Solve Prob. 2–4 with F   = 350 lb. F C B A 30  45    SOLUTION  Parallelogram Law: The parallelogram law of addition is shown in Fig. a . Trigonometry: Using the law of sines (Fig. b ),we have Ans.Ans. F AC  = 256 lb F AC sin 45°  = 350sin 75°  F AB  = 314 lb F AB sin 60°  = 350sin 75°  Ans: F   AB  = 314   lb   F   AC   = 256   lb
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