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mishaal
Questions and answers by visitors named
mishaal
Answers (1)
according to def v=d/t d1 = v1•t1= 20•2 = 40 m d2 = v2•t2 = 40•2 = 80 m d3= v3•t3 = 60•6 =360 m d= d1+d2+d3 = 40 + 80+360 =480 m t= t1+t2+t3 = 2+2+6 = 10 s v(ave) = d/t =480/140 =48 m/s
