Solve the question correctly no. 23
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X =80 - 3t^2
Vavg = displacement /time
V avg = X 1 - X 0 /1=80-3-80/1=-3m/s
2 . V avg = X4- X0/ 4= 80-3*4*4 - 80/4
Vavg = - 12 m/s
Vavg = displacement /time
V avg = X 1 - X 0 /1=80-3-80/1=-3m/s
2 . V avg = X4- X0/ 4= 80-3*4*4 - 80/4
Vavg = - 12 m/s
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