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If one drives for one mile at 50 mph and the next mile at 40 mph what is his average speed?
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∙ 15y ago
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James drives her car at 20 kph for 40 km and 40 kph for the next 60 km. What is her average speed for the entire trip?
(20+40)/2=30 kph
A car travels 1 mile at 45 miles per hour What must its average speed be for the next mile in order to average 60 miles per hour for the 2 miles?
The answer is 75 mph. If one travels at 45 mph for one mile, then in order to travel an average of 60 mph for the 2 miles, the rate must be 75 mph (60-45=15). Then add 15 to 60 to get the rate for the second mile. To check the answer add 75 and 45 and divide by 60 (the minutes in one hour) to get the distance (2 miles).
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
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.
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.
How many hours per mile does a 737 airplane fly?
Since its introduction in 1968, the Boeing 737 has been produced in nine variants. All of them have the same minimum reciprocal speed: 0.001838 hours per mile. All of the variants from the 737-100 to the 737-500 have the same cruising reciprocal speed: 0.002062 hours per mile. The 737 Next Generation variants ... the -600, -700, -800, and -900 ... have a lower reciprocal cruising speed: 0.001957 hours per mile.
You are seated next to the pilot of a small plane at an altitude of one mile Huge mountains loom directly ahead The pilot does not change speed direction or elevation yet you survive?
You are on the ground in Denver (the mile high city) :)
Because the speed of an object can change from one instant to the next dividing the total distance covered by the time of travel given?
Average speed = distance/time
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
Which is the next need for speed game?
the next games areNeed for Speed Hot PursuitNeed for Speed World
What actors and actresses appeared in Next Tooth One Mile - 2008?
The cast of Next Tooth One Mile - 2008 includes: Cassi Glisper
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
