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GATE Past Year Questions: Free Body Diagrams | Engineering Mechanics - Civil Engineering (CE) PDF Download

Question for GATE Past Year Questions: Free Body Diagrams
Try yourself:A bar of uniform cross section and weighing 100 N is held horizontally using two massless and inextensible strings S1 and S2 as shown in the figure.
GATE Past Year Questions: Free Body Diagrams | Engineering Mechanics - Civil Engineering (CE)

[2018]

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Question for GATE Past Year Questions: Free Body Diagrams
Try yourself:A force F is acting on a bent bar which is clamped at one end as shown in the figure.
GATE Past Year Questions: Free Body Diagrams | Engineering Mechanics - Civil Engineering (CE)
The CORRECT free body diagram is

[2016]

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Question for GATE Past Year Questions: Free Body Diagrams
Try yourself:A rigid ball of weight 100 N is suspended with the help of a string. The ball is pulled by a horizontal force F such that the string makes an angle of 30° with the vertical. The magnitude of force F(in N) is ______.

[2016]

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FAQs on GATE Past Year Questions: Free Body Diagrams - Engineering Mechanics - Civil Engineering (CE)

1. What is a free body diagram?
Ans. A free body diagram is a visual representation that shows all the forces acting on an object. It helps in understanding the forces involved in a given situation and their direction, magnitude, and point of application.
2. Why are free body diagrams important in physics?
Ans. Free body diagrams are important in physics because they help in analyzing and solving problems related to the motion of objects. By visually representing the forces acting on an object, they provide a clear understanding of the forces involved and enable the application of Newton's laws of motion.
3. How do you draw a free body diagram?
Ans. To draw a free body diagram, follow these steps: 1. Identify the object of interest. 2. Isolate the object and draw it as a dot or a simple shape. 3. Identify all the forces that act on the object and draw them as arrows starting from the dot or shape. 4. Label each force with its name and indicate the direction of the force with an arrowhead.
4. Can a free body diagram include internal forces?
Ans. No, a free body diagram only includes external forces acting on the object of interest. Internal forces, which are forces that one part of an object exerts on another part within the same object, are not included in a free body diagram. Only external forces have an effect on the motion of the object.
5. How can free body diagrams be used to solve problems?
Ans. Free body diagrams can be used to solve problems by helping to identify and analyze the forces acting on an object. By applying Newton's laws of motion to the forces shown in the diagram, one can determine the net force acting on the object and its resulting motion. This information can then be used to solve equations and find values such as acceleration, velocity, or the forces themselves.
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