Centripetal force | Wikipedia audio article
Channel: wikipedia tts
Date: 25/12/2018

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Centripetal_force


00:00:55 1 Formula
00:04:34 2 Sources
00:05:41 3 Analysis of several cases
00:05:59 3.1 Uniform circular motion
00:06:17 3.2 Calculus derivation
00:08:55 3.2.1 Derivation using vectors
00:09:34 3.2.2 Example: The banked turn
00:11:37 3.3 Nonuniform circular motion
00:17:51 3.4 General planar motion
00:19:32 3.4.1 Polar coordinates
00:23:03 3.4.2 Local coordinates
00:29:49 3.4.2.1 Alternative approach
00:29:58 3.4.2.2 Example: circular motion
00:42:02 4 See also
00:44:22 5 Notes and references
00:44:39 6 Further reading
00:52:18 7 External links
01:04:05 Example: circular motion
01:08:12 0 is located at position [ρ, 0] and s
01:10:59 0)
01:13:31 ρ. This acceleration is the standard result for non-uniform circular motion.
01:13:39 See also
01:13:48 == Notes and references
01:14:00 == Further reading
01:14:49 External links



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SUMMARY
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A centripetal force (from Latin centrum, "center" and petere, "to seek") is a force that makes a body follow a curved path. Its direction is always orthogonal to the motion of the body and towards the fixed point of the instantaneous center of curvature of the path. Isaac Newton described it as "a force by which bodies are drawn or impelled, or in any way tend, towards a point as to a centre". In Newtonian mechanics, gravity provides the centripetal force responsible for astronomical orbits.
One common example involving centripetal force is the case in which a body moves with uniform speed along a circular path. The centripetal force is directed at right angles to the motion and also along the radius towards the centre of the circular path. The mathematical description was derived in 1659 by the Dutch physicist Christiaan Huygens.