Q 1772723636.     The average
velocity `(vecv)` of an object is the ratio of the displacement
nd the corresponding time interval.

`vecv = (Delta r)/(Delta t) = (Delta x hati +Delta y hatj)/(Delta t) = hati (Delta x)/(Delta t) + hatj (Delta y)/(Delta t)`

`vecv = vecv_x hati +vecv_y hatj`

Since, `v= (Delta r)/(Delta t)`, direction of average velocity is
same as `Delta r`

Value of instantaneous velocity can be represented
by

A

`(Deltar)/(Delta t)`

B

`(Delta r)/(Deltat) , Deltat ->0`

C

`(dr)/(dt)`

D

Both (2) and (3) are correct

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