# Physical Science

posted by .

What was the average speed in km/h of a car that travels 400.0 km in 4.5h?

• Physical Science -

distance = rate x time
400 km = rate x 4.5 hours
Solve for rate.

• Physical Science -

395.5

• Physics -

88.89 km/hr

## Similar Questions

1. ### Physics

A car travels at an average speed of 83.2 km/h for 1.00 h and then at an average speed of 42.4 km/h during a second hour. What is the car's average speed during the 2.00 h interval?
2. ### science

What was the average speed in km/h of a car that travels 400.0 km in 4.5 h?
3. ### physics

An airplane travels 2800 km at a speed of 700 km/h, decreases its speed to 500 km/h for the next 1500 km and travels the last 1000 km at a speed of 400 km/hr. Find the average speed of the plane for the trip.
4. ### physical science

A car travels at a constant speed of 60 km/h for 3.5 hours. What is the total distance that the car has traveled?
5. ### physical Science

What was the average speed in km/h of a car that travels 400km in 4-5h?
6. ### physical science

A car travels in a northward direction for a total distance of 512 km. The car completes this trip in 6 hrs. After resting the driver makes the return trip, the return trip only takes 5.5 hours. What is the average speed of the car …
7. ### physical science

A car travels east for 15km at a speed of 30km/h .it then turns around and returns along the same path at 60km/h.what is the cars average velocity
8. ### Physics, science

a car travels 45 km in 1 hour. in each of the next 2 hours, it travels 78 km. what is the average speed of the car?
9. ### physical science

A car travels at a constant speed around a circular track whose radius is 3.5 km.The car goes once around the track in 400 s.What is the magnitude of the centripetal acceleration of the car?
10. ### science

A car travels West for 20min at 80km/hr and in direction 45NW at 30km/hr for 6min. Calculate the Total distance covered/ displacement of the car/ average speed/ average velocity.

More Similar Questions