P.7.13 Three identical bars of length L are hung in a vertical position as shown in Fig. P.7.13. A rigid, weightless beam is attached to their lower ends and this in turn carries a load P. Calculate the load in each bar. Ans. P=P/12, P=P[3, P3=7P/12. 1 2 FIGURE P.7.13 al2 al2

P.7.13 Three identical bars of length L are hung in a vertical position as shown in Fig. P.7.13. A rigid, weightless beam is attached to their lower ends and this in turn carries a load P. Calculate the load in each bar. Ans. P=P/12, P=P[3, P3=7P/12. 1 2 FIGURE P.7.13 al2 al2

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Free Body Diagram

The system of forces acting on a body tends to either rotate it or make the body undergo motion. In general, when an external agent exerts a force on a body, the body undergoes translational motion and rotational motion. The body has six degrees of freedom under the influence of that force. Here, three degrees of freedom are from the translational motion while the other three are from the rotation motion. However, sometimes the bodies are not allowed to undergo any motion and are fixed, under such conditions the body is said to be constrained.

Question

P.7.13 Three identical bars of length L are hung in a vertical position as shown in Fig. P.7.13. A rigid,
weightless beam is attached to their lower ends and this in turn carries a load P. Calculate the load in
each bar.
Ans. P=Pl12, P2=P13, P3=7P/12.
1
2
P
FIGURE P.7.13
a
al2

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