57 Answered Questions for the topic Average Speed

Average Speed

12/18/16

Julie drove 495 miles in 9 hours. What was Julie's average speed in miles per hour?
this is multiple choice, so the answers are ethier 44,50,55 or 60.
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12/14/16

The legal maximum speed on UK motorways is 70 miles per hour. Work out the legal maximum speed on UK motorway in meters per second.
I need help because i can't figure out he answer to this question
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Average Speed

10/13/16

How do I find the average speed if I know the distance and the time
so the problem is this:    Starting at home, Jessica traveled uphill to the toy store for 12 minutes at just 10 mph. She then traveled back home along the same path downhill at a speed of... more
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Average Speed

07/06/16

Physics problem
A cross-country rally car driver sets out on a 100.0 km race. At the halfway marker (50.0 km), her pit crew radios that she has averaged only 80.0 km/h. How fast must she drive over the remaining... more
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Average Speed Time High School Maths

02/13/16

What was Andrew's average walking speed in mph?
Andrew drove one and a half miles to work and then walked back home at a tenth of his average driving speed. The two journeys lasted a total of 33 minutes. What was Andrew's average walking speed... more
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Average Speed

02/04/16

Average speed
A truck driver traveled at an average speed of 55 miles per hour on a 200- mile trip with the truck fully loaded. The average speed was 40 miles per hour. What was the average speed for the round... more
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Average Speed

02/03/16

Alex swims in a 400-m freestyle competition at an average speed of 1 1/3 m/s. If he increases his average speed to 1.6 m/s, how much less time will he take?
This question is from the Singapore Primary Mathematics Workbook 6A.
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Average Speed Physics

01/27/16

Julie drives 100 mi to Grandmother's house. On the way to Grandmother's,
Julie drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 34.0 mph and half the distance at 66.0 mph . On her return trip, she drives half the time... more
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Average Speed

12/21/15

Average rate
A car and a bus both completed a 240 mile trip. The car averaged 10mph faster than the bus  and completed the trip in 48 minutes less time than the bus. Find the average rate in miles per hour of... more
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Average Speed

11/04/15

A car covers half distance at 60 km/h and rest at 80 km/h. Find the average speed for entire journey
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Average Speed

09/14/15

What is his average speed?
Jack drives at 40 mph for an hour, then at 50 mph for an hour.
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Average Speed Physics Acceleration Distance

09/10/15

Use your knowledge of acceleration, average speed, and running starts to explain why it happens?
A common track event is the 4x100m relay, where each athlete each run 100m and passes a baton to the next runner who then runs 100m, and so on until all four runners have gone. The runners... more
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Average Speed Physics Acceleration Time

09/10/15

Driving at 75m/s, you hit the brakes on your new car, accelerating at a rate of -20m/s. How long will it take the car to come to rest?
Driving at 75m/s, you hit the brakes on your new car, accelerating at a rate of -20m/s. How long will it take the car to come to rest?   Show work (Acceleration or Average Speed)
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Average Speed Physics Acceleration Time

09/10/15

Riding your bike, you can accelerate at a rate of 1.5m/s^2. If you accelerate for 17 seconds, how much speed will you gain?
Riding your bike, you can accelerate at a rate of 1.5m/s^2. If you accelerate for 17 seconds, how much speed will you gain?   (s) = seconds   SHOW WORK (Average Speed or Acceleration)
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Average Speed Physics Acceleration Time

09/10/15

Riding your bike, you can accelerate at a rate of 2m/s^2. If you start from rest, how long will it take to reach a speed of 20m/s?
Riding your bike, you can accelerate at a rate of 2m/s^2. If you start from rest, how long will it take to reach a speed of 20m/s?   Show work (Average Speed or Acceleration)
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Average Speed Physics Acceleration Time

09/10/15

Your new car can go 0-90 m/s in 5 seconds. What is your car's acceleration?
Your new car can go 0-90 m/s in 5 seconds. What is your car's acceleration?   Show work (Average Speed or Acceleration)
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Average Speed

08/31/15

a: What was the average speed of the winner of the wheelchair division? b: At this rate, about how long would it take this person to finish a 30-mile race?
The record for the Boston Marathon's wheelchair division is 1 hour, 18 minutes, and 27 seconds. The Boston Marathon is 26.2 miles long.     a: round to the nearest hundredth
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Average Speed Math

07/02/15

What is her average speed, in miles per hour, for the entire trip?
When Lucy drives to her job, her average speed is 30 miles per hour. When she drives home from work by the same route, traffic is lighter, so her average speed is 45 miles per hour.    I tried... more
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Average Speed

06/16/15

a car is moving with average speed of 20km per hour while coming the average speed is 30km per hour find out the average speed of the entire journey
average velocity is equal to total distance travelled by total time taken
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Average Speed Physics Radius

04/15/15

Mercury orbits the sun with an average speed of 4.78 x 104 m/s. About how long does Mercury take to orbit the sun once if the radius of its almost circular orbi
Mercury orbits the sun with an average speed of 4.78 x 104 m/s. About how long does Mercury take to orbit the sun once if the radius of its almost circular orbit is 5.79 x 1010m?
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Average Speed Math Science Time

03/01/15

If Justin races his Checy S-10 down Highway 4 for 2,560 meters in 60 seconds, what is his average speed(velocity)?
If Justin races his Checy S-10 down Highway 4 for 2,560 meters in 60 seconds, what is his average speed(velocity)?
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02/26/15

Rate of Change
At noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing west at 20 knots and ship B is sailing north at 18 knots. How fast (in knots) is the distance between the ships changing... more
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Average Speed

02/18/15

Average Speed problem
a bus travels for 3 hours at an average speed of 50 mph. How much longer must the bus travel at an average speed of 60 mph so that the average speed for the total trip will be 52 mph?
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Average Speed

01/29/15

a man drove 1/2 of his trip at 36 mi/h. What speed does he need to drive the next half to make the average speed 45 mi/h
I don't know how to solve it! The basic formula for average speed is speed=distance/time but here, you have none of that!
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Average Speed

01/26/15

Average speed
A dirtbiker must Circle a 5 mile track twice. His average speed must be 40 mph. On his first lap he averaged 25 mph. How fast must he travel during hissecond lap to qualify? the teacher said the... more
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