Fingers: If the width of a human finger is 2.2 cm (7â8 in), then a million fingers lined up would cover a distance of 22 km (14 mi). If a person walks at a speed of 4 km/h (2.5 mph), it would take them approximately five and a half hours to reach the end of the fingers.
The rotors on a vehicle can last anywhere from 30,000 to 70,000 miles and sometimes more. A licensed mechanic, such as one from YourMechanic, can evaluate the rotors and advise you on their status; they may not need to be changed as often as the brake pads. Like brake pads, they should be replaced in pairs.
join brainly today. The braking distance (d) needed to stop a car varies directly with the square of the car's speed (s). A car going 30 mph needs 40 feet of braking distance to come to a complete stop. How many feet of braking distance would the same car, under the same conditions need going 70 mph? (Round the answer to the nearest whole number.)