60 MPH = 88 fps. (fps=1.467 * MPH). If the vehicle deceleration rate is 20 fpsps, then stopping time = 88/20 = 4.4 seconds. Since there is a 1 second delay (driver reaction time) in hitting your brakes (both recognition and reaction time is often 2 seconds), the total time to stop is 5.4 seconds to 6.4 seconds.
Depends what car it is.
45 feet
It depends on the road conditions, as well the state of your brakes.
Depends how fast the car is.
50 miles per hour.
Depends what car it is.
45 feet
It depends on the road conditions, as well the state of your brakes.
5o miles per hour is 73.3 feet per second. The average stopping distance for the breaks at that speed is 128 feet. Now add to that the average reaction time for a driver at that speed which is 3/4 second so we add 55 feet gives us a total of 183 feet.
3 x 45 = 135 miles total distance. You are averaging 45 miles per hour over the 3 hour period.
Depends how fast the car is.
50 miles per hour.
Three hours at 62 mph is a distance of 186 miles.
1 hour = 3,600 seconds1 mile = 5,280 feet87 miles/hour = (87/3,600) miles per secondOver 12 seconds, distance = (12) x (87/3,600) = 0.29 mile = 1,531.2 feet
A cruise ship travels 1900 miles per trip. There are a total of 4 stops the ship makes, and the distance to the first stop is 460 miles. If the variable d stands for the distance left to travel after the first stop, which of the following choices is the most reasonable value for d?1,500 miles
For this kind of problems, divide the distance travelled by the speed. If the distance is in miles, and the speed in miles per hour, the time will be in hours.
A mile is not the same distance as a kilometer; therefore miles per hour and kilometers per hour are not the same unit, either.