Question

An automobile travels on a straight road for 40 km at 30 km/h. It then continues in the same direction for another 40 km at 60 km/h. (a) What is the average velocity of the car during the full 80 km trip? (Assume that it moves in the positive x direction.) (b) What is the average speed?

Name: an automobile travels on a straight road for 40 km at 30 kmh it then continues in the same direction for another 40 km at 60 kmh a what is the average velocity of the car during the full 80 19168
Uploaded: 2023-03-07T19:39:10-08:00
Duration: 2 min 16 s
Channel: Prabhu Ramji
Description: an automobile travels on a straight road for 40 km at 30 kmh it then continues in the same direction for another 40 km at 60 kmh a what is the average velocity of the car during the full 80 19168

          An automobile travels on a straight road for 40 km at 30 km/h.
It then continues in the same direction for another 40 km at 60
km/h.
(a) What is the average velocity of the car during the full 80
km trip? (Assume that it moves in the positive x direction.)
(b) What is the average speed?

Added by Sarah B.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Prabhu Ramji

03/07/2023

Step 1

For the first 40 km at 30 km/h, the time it takes is: t1 = distance / speed = 40 km / 30 km/h = 4/3 hours For the next 40 km at 60 km/h, the time it takes is: t2 = distance / speed = 40 km / 60 km/h = 2/3 hours Now, we can find the total time for the Show more…

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An automobile travels on a straight road for 40 km at 30 km/h. It then continues in the same direction for another 40 km at 60 km/h. (a) What is the average velocity of the car during the full 80 km trip? (Assume that it moves in the positive x direction.) (b) What is the average speed?