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What is the average speed of a car that went 40 km in the first 2 hours and 80 km in the next 2 hours?
Wiki User
∙ 9y ago
60 kph.
Wiki User
∙ 9y ago
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What is the cars average speed if it travels 60 kilometers the first two hours and 15 kilometers the next?
Total distance = 75 km time = 3 hours average speed = 75km/3hrs = 25 km/hr
A car travels 60 km in the first 2 hours and 68 km in the next 2 hours. What is the car and average speed?
32 km/h
If the reina family drove 348 miles on the first day of their vacation in 6 hours at that rate how far will they travel in the next 9 hours?
The most important formula to memorize is: Distance = Rate (speed) x Time (hours or minutes, etc..) Therefore, the average rate on the first date can be calculated as follows: Rate = Distance / Speed 348 miles divided by 6 hours = 58 miles per hour. At that rate, a total of 58 miles times 9 hour = 522 miles can be driven by the family in the next 9 hours.
How long does it take to travel 400 miles?
The time it takes to travel 400 miles depends on the average speed. If the average speed is 50 miles per hour, you will travel 50 miles in the first hour, 50 more in the next, 50 more in the next and so on. The number of hours it will take is equal to the number of 50 mile stretches in 400 miles. That's 400 divided by 50, which is 8. It will take 8 hours to travel 400 miles at an average speed of 50 miles per hour. In general, if your average speed is s, then it will take 400 divided by s, or 400/s hours. Whatever the distance is, let's call it d, the time taken to travel is is d/s. It depends on the mode of transportation and the speed in which it is moving at.
A car travels 30 km at uniform speed of 40km per hour and the next 30 km at a uniform speed of 20 km per hourfind its average speed?
First 30k takes 45 min, second 30k takes 90 min, total 60k in 2¼ hours so average speed = 60 x 4/9 = 26 and 2/3 kph
Bette drives at 60 miles per hour for 2 and a half hours and at 75 miles per hour for 1 and a half hours what is her average rate of speed?
Average speed = (total distance covered) divided by (time to cover the distance)Distance in the first 2.5 hours = (2.5 x 60) = 150 milesDistance in the next 1.5 hours = (1.5 x 75) = 112.5 milesTotal distance = (150 + 112.5) = 262.5 milesTotal time = (2.5 + 1.5) = 4 hoursAverage speed = (262.5/4) = 65.625 miles per hour
If you drive 30 in 40 minutes and then 15 miles in 20 minutes do you have a constant speed?
The average speed over the first 30 miles is equal to the average speed over the next 15 miles. You cannot guarantee that the speed was constant inbetween, though. The average speeds are 45 MPH for each leg.
A cyclist rides 30 km at an average speed of 9kmhr At what rate must the cyclist cover the next 10 km in order to bring the overall average speed up to 10kmhr?
In all he will cover 40 km. To do so at an average speed of 10 kph means his total journey will take 4 hours. He has taken 3hr 20 min for the first part (30km @ 9kph), so he has 40 min to cover the final 10km. Required speed is therefore 10 x 60/40 ie 15 kph.
How long should you leave contacts in your eyes?
The first time you try it should be 4 hours for a week, then next week try on 8 hours and after you are used to it, try for 12 hours. That is the average time you leave your contacts in your eyes.
Because of the speed of an object can change from one instant to the next dividing the total distance covered by the time of travel gives what?
average speed
What is the difference of speed from average speed in physics?
Average speed allows you to change the instantaneous speed throughout the travel time, while during constant speed, one keeps there instantaneous speed at the same numberAverage speed is when a car is moving with a speed of 25 miles per hour. Constant speed is speed maintained consistency over time.
For his first 6 tests his average score was 86 and for his next 4 tests his average was 94 what was his average score for his first 10 tests?
89.2
