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PHYSICS Consider a simple pendulum of length "T, consists a bob of mass "m" suspended from rigid support "s". The pendulum pulled through a side with small angular displacement ** and released then it begins to oscillation about the mean position "O"At any instant of time, the pendulum at point A, the weight "mg" resolved into two "mg cos 8" balanced by the tension in a string. mg sin pulled the pendulum to its means position, hence "mgsinis called restoring force F=-mg sin [-ve sign indicate that opposite direction of applied force ] If ** is very small, then sin 8-0 ..F=-mge From Newton's lind law F = ma Ma=-mige (or) a =-ge PARAPA its displacement but in opposite direction and acceleration always acts towards its mean position is defined as simple harmonic motion. If "a is the acceleration of the body at a displacement "y" from the mean position then ac-y (or) a =-*y here is constant The projection of uniform circular motion on any diameter is SHM : components. رواه 1x Consider a paricle "p" is moving on the circumference of a circle of radius A with uniform angular velocity "0" in anticlock wise direction with centre" then the circle is called From fig. angle = are (x) -(or) - I ...
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