An Airplane Flying Directly Eastward At A Constant Rate Travels 317 Km In 2.0h.(a)what Is The Average Velocity Of The Plane?(b) What Is Its Instantaneous Velocity?

Velocity is defined as distance travelled in a certain time period. You can use the simple formula for velocity for this question. I.e

V = S/T
Where V is the average velocity, S is the distance covered and T is the time period. Putting values
V = 317/2
V = 158.5 km/hour is the answer for the first part.

Instantaneous velocity refers to the velocity of the object at any given instant in time. Since the airplane was moving at a constant speed, its Instantaneous velocity will be equal to its average velocity.

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