Drawbridges are supported by a pin at the base (point A) and the top of the bridge rests against the castle wall at point B (x-reaction force at point B only). The concussive force is as shown in Fig 2 (it has a strange distribution). From 0- 3 meters the force is modeled by ¹2 y^3. The force then increases uniformly from 0 to 30 N/m over meters 3-9 meters from the base. The force then again decreases to 0 N/m at point B. What are the reactions at point A and B? 3.0 m- 30 N/m 6.0 m- 12.0 m 3.0 m- FBlast ►X || ZY Drawbridge

Drawbridges are supported by a pin at the base (point A) and the top of the bridge rests against the castle wall at point B (x-reaction force at point B only). The concussive force is as shown in Fig 2 (it has a strange distribution). From 0- 3 meters the force is modeled by ¹2 y^3. The force then increases uniformly from 0 to 30 N/m over meters 3-9 meters from the base. The force then again decreases to 0 N/m at point B. What are the reactions at point A and B? 3.0 m- 30 N/m 6.0 m- 12.0 m 3.0 m- FBlast ►X || ZY Drawbridge

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Strain energy

The term strain indicates the variation in an object's length, area, and volume when the object is subjected to an external force. The external force may be of normal, shear, moment, torque, etc. The strain in an object depends on the types of external force and cross-section of the object. Mathematically, the evaluation of strain can be obtained with the help of elastic constants.

Question

Drawbridges are supported by a pin at the
base (point A)
and the top of the bridge rests against the
castle wall at point B (x-reaction force at
point
B only). The concussive force is as shown in
Fig 2 (it has a strange distribution). From 0-
3
meters the force is modeled by ¹2 y^3. The
force then increases uniformly from 0 to 30
N/m
over meters 3-9 meters from the base. The
force then again decreases to 0 N/m at
point
B. What are the reactions at point A and B?
B
3.0 m.
30 N/m
6.0 m-
12.0 m
3.0 m FBlast =
▶X
Drawbridge @

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