Saved Bookmarks
| 1. |
State newton three laws and discus theirsignificance |
|
Answer» SOLUTION :Newton'sfirstlaw : Everyobjectcontinuestobe in the stateof restor ofuniformmotionunless thereis externalforceactingon it. Newton'ssecondlaw : Theforceactingon an object is equalto the rateof changeof itsmomenturm. `vec(F ) = (vec(dp))/(DT )` newton'sthirdlaw :Newton'sthirdlasw statesthat foreveryactionthere isan equaland oppositereaction . Singificanceof Newton'slaswof MOTION (i)Newton'slawsare vectorlaws: (ii)Theaccelerationexperieneed bythe bodyat time1 dependson theforcewhichactson thebodyat thatinstant oftime (III)In generalthe DIRECTION of a forcemaybe differentfrom the directionof motion (iv) The totalforce `(vec(F )_(max))` is equivalentto thevectorialsum of the individualforces . (v)If noforceactson thebodythenNewton'ssecond`m(d vec(v ))/(dt )=0` (vi) Newton'ssecondlaw has causeadn effectrelation.Force is tehcauseadn accelerationis teheffect. |
|