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CBSE Class 9 Answered

what is k?
Asked by | 31 Jul, 2008, 03:56: PM
answered-by-expert Expert Answer

The Newton's 2nd law of motion gives us a relation between force, acceleration and mass. It is a simple mathematical relation F = ma. So , there is no involvement of k involved in the 2nd law of motion.k is just a proportionality constant.

F is proportinal to m.; F is proportinal to acceleration.

So F = k ma ; when F =1unit , m=1 unit , a =1 unit ; then k=1

Answered by | 31 Jul, 2008, 04:48: PM

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