Gramin ACS College Vasantnagar, Kotgyal � MATHEMATIS

B.Sc. Final Year Paper-14^th (Mechanics)

Sem-V

PPT Presented by.....

Prof. Dr. P. R. Shinde

Department of Mathematics

Gramin ACS college Vasantnagar, kotgyal

Tq: Mukhed Dist: Nanded ( M.S) INDIA

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Force acting on a particle

• Particle: A particle is a body which is indefinite small in size and shape. It may be considered as a geometrical point which has position and mass.

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• Rigid body : It is a system of particles, the distances between which remain unchanged. A rigid body may also be regarded as a continuous distribution f matter.

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• Force: It is a cause which changes, or tends to change, the state of rest or of uniform motion of the body. A force has point of application i,e.the the point of the body at which the force acts, magnitude and direction.

• The force as a vector : From the geometrical point of view, a force can be represented by a directed line segment (called vector) through the point of application and this line segment is termed as its line of action.

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• Equilibrium : A system of forces acting on body , initially at rest, is said to be in equilibrium, if the body remain at rest , under the action of that system.

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• An axiom for equilibrium of two forces: “Two forces acting at a point of a rigid body are in equilibrium if they equal in magnitude and opposite in direction.”