Final answer:
The distance a driver should be able to see objects through the rearview mirror regardless of load is approximately 200-250 feet. The greatest possible distance a car can be from the driver and still resolve its two headlights is 2.60 meters. The distance between two just-resolvable points held at an arm's length from the eye is 1.60 meters.
Step-by-step explanation:
The distance a driver should be able to see objects through the rearview mirror regardless of load is approximately 200-250 feet.
In order to calculate the greatest possible distance a car can be from the driver while still being able to resolve its two headlights, we can use the formula:
d = h1 + h2
Substituting the given values, with h1 = h2 = 1.30 m, we get:
d = 1.30 m + 1.30 m
d = 2.60 m
Therefore, the greatest possible distance a car can be from the driver and still resolve its two headlights is 2.60 meters.
To find the distance between two just-resolvable points held at an arm's length from the eye (0.800 m), we can use the formula:
d = h1 + h2
Substituting the given value, with h1 = h2 = 0.800 m, we get:
d = 0.800 m + 0.800 m
d = 1.60 m
Therefore, the distance between two just-resolvable points held at an arm's length from the eye is 1.60 meters.