How many meters across is a road sign that has an angular size of 120 arcseconds and is 1 km away?
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Let the first car's average speed be x
The second car's speed would be x+5
So the speed of the slower car is 50mph, and the speed of the faster car is 55mph
The second car's speed would be x+5
So the speed of the slower car is 50mph, and the speed of the faster car is 55mph