CBSE Class 9 Answered
numerical
Asked by | 19 Aug, 2008, 04:59: PM
Expert Answer
Acceleration of the body,a=(v-u)/t=(4.2-1.8)/1.2=2 ms-2
Speed chsnge in 2 seconds,v-u=at=2*2=4 ms-1
Answered by | 19 Aug, 2008, 06:43: PM
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