- #1

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A driver moves 1/3 of the way between two cities with speed of 60 km/hour

he continuous with speed of 90 km/hour find the average velocity? the car is moving to the right

please help me

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- Thread starter MMM123456
- Start date

- #1

- 1

- 0

A driver moves 1/3 of the way between two cities with speed of 60 km/hour

he continuous with speed of 90 km/hour find the average velocity? the car is moving to the right

please help me

- #2

- 1,065

- 10

Find all the equations that relate to above equation.

- #3

- 35

- 0

Now, what you have to do is find an expression for time, using s for displacement and the known speeds. Try it yourself from there and reply if you're having difficulties.

What you could do, if you want to simplify the question, is to instert a known value for the displacement. Since the only information you've got is the fraction of which he drove at the two speeds, this wouldn't affect the final answer as the displacement cancels out in the calculations.

EDIT: I was away and did not notice the above poster. My bad.

- #4

NascentOxygen

Staff Emeritus

Science Advisor

- 9,244

- 1,072

Let the distance between the cities = x km.

A driver moves 1/3 of the way between two cities with speed of 60 km/hour

he continuous with speed of 90 km/hour find the average velocity? the car is moving to the right

please help me

and proceed from there .....

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