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If one car travels at an average speed of 48 miles per hour A slower car travels an average speed of 36 miles per hour how many more miles per hour does the faster car travel than the slower car?
The faster car travels at 48 miles per hour The slower car travels at 36 miles per hour 48mph - 36mph = 12mph Therefore, the faster car travels 12 miles per hour faster than the slower car. Note that the question refers to the relative speeds of the cars and not the relative distances.
One car travels at a rate of 60 miles per hour The other car travels at a rate of 70 miles per hour How far apart will the two cars be at the end of 4 hours?
520 miles
Is there anything that travels about 350 miles an hour?
Yes there are things that travel about 350 MPH an beyond, for example aircraft can get to speeds well over 1000 MPH and at the Bonneville Salt Flats in Northwestern Utah, race cars have been breaking the 300 MPH mark since 1935 and now high speed race cars can travel in excess of over 600 mph.
If 2 cars start 100 miles apart drive in a straight line in opposite directions 1 is going 60 mph and 1 is going 45 mph when will they collide?
Never, since they are travelling in opposite directions.. . . but probably not the one the algebra book's authors intended....If you assume that "opposite directions" means the cars are travelling towards each other, their closing speed (i.e. relative speed) is 105 mph. That means they'll meet in 100/105 hours, or slightly more than 57 minutes.
What is a cars acceleration if it increases its speed from 5 to 20 in 3 seconds?
Acceleration = change in speed/time = (20-5)/3 = 15/3 = 5 units of speed per second. It is not possible to be any more precise because the unit of speed (kilometres per hour, miles per hour, metres per second) is unspecified.
