1. State explain theorem of transmissibility.
2. Define and explain parallelogram law of forces.
3.Explain the difference between coefficient of friction and angle of friction.
4. State lami theorem and varignon's theorem.
5. What are the characteristics of a force.
6. What are the characteristics of a couple.
7. Explain sliding friction and rolling friction with examples.
8. Define and explain triangle law of forces. please give me all questions answer.
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1. The principle of transmissibility states that the point of application of a force can be moved anywhere along its line of action without changing the external reaction forces on a rigid body. ... This difference in stresses may also result in changes in geometry which will in turn affect reaction forces
2.a rule for adding two vectors, as forces (parallelogram of forces ), by placing the point of application of one at the point of origin of the other and obtaining their sum by constructing the line connecting the two remaining end points, the sum being the diagonal of the parallelogram whose adjacent sides are the two
3. The coefficient of friction between any two surfaces in contact is defined as the ratio of the force of limiting friction and normal reaction between them. Angle with the resultant of force of limiting friction F and normal reaction R makes with the direction of normal reaction R is angle of reaction
4. Lami's theorem states that if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two forces.
The theorem states that the torque of a resultant of two concurrent forces about any point is equal to the algebraic sum of the torques of its components about the same point.
5. Characteristics of Force:
Forces are due to an interaction of at least two objects.
It may change the state of motion of an object.
It may change the shape of an object.
Forces applied on an object in the same direction add to one another and the resultant is in the same direction.
Characteristics of the Couple:
As the two forces forming couple are equal and opposite the couple doesn't produce translational motion.
When it acts on a body net resultant force acting on a body is zero.
7. Rolling friction takes place when an object rolls on the surface. Sliding friction takes place when two surfaces are rubbed against each other. Rolling friction takes place due to the deformation of surfaces.
8. Triangle law of vector addition states that when two vectors are represented as two sides of the triangle with the order of magnitude and direction, then the third side of the triangle represents the magnitude and direction of the resultant vector.
2.a rule for adding two vectors, as forces (parallelogram of forces ), by placing the point of application of one at the point of origin of the other and obtaining their sum by constructing the line connecting the two remaining end points, the sum being the diagonal of the parallelogram whose adjacent sides are the two
3. The coefficient of friction between any two surfaces in contact is defined as the ratio of the force of limiting friction and normal reaction between them. Angle with the resultant of force of limiting friction F and normal reaction R makes with the direction of normal reaction R is angle of reaction
4. Lami's theorem states that if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two forces.
The theorem states that the torque of a resultant of two concurrent forces about any point is equal to the algebraic sum of the torques of its components about the same point.
5. Characteristics of Force:
Forces are due to an interaction of at least two objects.
It may change the state of motion of an object.
It may change the shape of an object.
Forces applied on an object in the same direction add to one another and the resultant is in the same direction.
Characteristics of the Couple:
As the two forces forming couple are equal and opposite the couple doesn't produce translational motion.
When it acts on a body net resultant force acting on a body is zero.
7. Rolling friction takes place when an object rolls on the surface. Sliding friction takes place when two surfaces are rubbed against each other. Rolling friction takes place due to the deformation of surfaces.
8. Triangle law of vector addition states that when two vectors are represented as two sides of the triangle with the order of magnitude and direction, then the third side of the triangle represents the magnitude and direction of the resultant vector.
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