Question

City B is south of city A, and the 200 mile trip by car takes 4 hours. The cities are 120 miles apart in a straight line. What is the velocity of a trip from City A to City B?

Answer 1

Hello!

The answer is: 30 mph south.

Why?

We are given the displacement, so, if the car were able to travel in straight road (displacement), the velocity is: 30 mph south.

Calculations:

`v=(displacement)/(time)`

`v=(120miles(south))/(4hours)=30(miles)/(hours)`

Therefore, the velocity is: 30 mph south.

Remember, velocity has always a direction while the speed is just a magnitude.

Have a nice day!

Answer 2

The velocity of a trip from City A to City B using the car is 50 miles per hour.

Step-by-step explanation:

Given

200 mile trip by car takes 4 hours.

Distance between cities = 120 miles

Required:

What is the velocity of a trip from City A to City B?

To get the velocity of a trip from city A to B, we consider the parameter given for the car that travel 200 miles distance in 4 hours

Velocity = displacement ÷ time

Where displacement 200 miles

Time = 4 hours.

By substituton,

So, velocity= 200 miles ÷ 4 hours

Velocity = 50 miles ÷ hour

Velocity = 50 miles per hour

The velocity of a trip from City A to City B using the car is 50 miles per hour.