During which time interval was the motion fastest?

Answer : The correct option is, 1 hr to 2 hr

Explanation :

Velocity : Velocity is defined as the rate of change of position of an object with respect to the time. It is a vector quantity that means it tell us about the magnitude and direction of an object.

Formula used :

To calculate the velocity for time interval 0 to 2 hr:

To calculate the velocity for time interval 2 to 4 hr:

To calculate the velocity for time interval 4 to 5 hr:

From this we conclude that, at time interval 0 to 2 hr the motion will be fastest.

Hence, the correct option is, 1 hr to 2 hr

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