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How many seconds will it take for a car to stop if it is traveling at a speed of 40 miles per hour?
Stopping distances are measured in feet not in seconds. At 40 mph you're traveling 58.7 feet per second. The average driver reaction time is about 3/4 second which equates to 44 feet. After applying the brakes it will take approximately 82 feet to stop the vehicle. The total stopping distance for a car traveling 40 mph will be 126 feet when you include reaction time and actual stopping distance of the vehicle. If you divide 126' x 58.7' which is the distance traveled per second you get 2.14 seconds. This is assuming you're paying attention and have average reaction time while driving.
A car slows down uniformly from 30.0 meter per seconds to rest in 7.20 seconds how far did it travel while decelerating?
Its average speed was 1/2 of (30 + 0) = 15 meters per second.Distance = (average speed) x (time) = 15 x 7.2 = 108 meters .
You are driving at a speed of 20 meters per second and decelerate at a constant rate stopping in 4 seconds How far do you ravel while stopping?
Initial speed = 20 m/sFinal speed = 0Average speed = 10 m/sDistance = (average speed) x (time) = 10 x 4 = 40 meters .
Abdul while driving to school computes the average speed for his trip to be 20 kmh On his return trip along the same route there is less traffic and the average speed is 40 kmh The average spee?
30 km/h
What does dwt mean?
DWT means driving while texting.
