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Physics- Principle of Moments

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kushagramodi56's version from 2015-05-12 19:08

Section

Question Answer
Equation for momentForce applied*perpendicular distance from pivot
What is the principle of momentsWhen object is at equilibrium, anti clockwise moments= clockwise moments
Define centre of massPoint an object where mass is considered to act
What is Hooke's law Up to the elastic limit, force is directly proportional to length of extension
How to find c.o.m1. Hang up object
2. Suspend mass from same place
3. Mark position of thread
4. C.O.M is somewhere along line of thread
5. Repeat 1-3 with object suspended from different place
memorize

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