In this lesson, we will learn how to calculate the magnitude of the average velocity of a particle moving in a straight line.

Q1:

A moving particle passed through two points π΄ ( 2 , β 5 ) and π΅ ( 1 , 2 ) at the 6th and 11th seconds, respectively. Find the magnitude of the average velocity of the particle π£ during this period of time and its direction π to the nearest minute.

Q2:

The function π ( π‘ ) = β 1 6 π‘ + 1 4 4 π‘ 2 gives a projectileβs displacement in meters after π‘ minutes. Find the average velocity of the projectile on the interval [ 1 , 2 ] .

Q3:

At the start of a trip, the odometer on a car read 2 1 3 9 5 . At the end of the trip, 13.5 hours later, the odometer read 2 2 1 2 5 . Assume the scale on the odometer is in miles. What is the average speed the car traveled during this trip in miles per hour? Give your answer correct to one decimal place.

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