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| 1. |
a:if tge average velocity of a particle is zero in a tike interval,it is possible that the ins†an†an eous velocity is never zero in the interval r:if the average velocity of a pqrticle moving on a straight line is zero in a tike interval then qtleast for one moment the ins†an t†an eous velocity will alsi be zero in the intetval |
| Answer» a:if tge average velocity of a particle is zero in a tike interval,it is possible that the ins†an†an eous velocity is never zero in the interval r:if the average velocity of a pqrticle moving on a straight line is zero in a tike interval then qtleast for one moment the ins†an t†an eous velocity will alsi be zero in the intetval | |