80.25 yards
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1 miles = 1760 yards 1 hour = 3600 s Distance = speed × time = 45 mph × 3 s = 45 miles/hours × 3 seconds = 45 × (1760 yards)/(3600 seconds) × 3 seconds = 45 × 1760/3600 × 3 yards = 66 yards.
60 mph is 88 feet per second. 40 ft / 88 ft/s = ~.45 seconds
To calculate the distance traveled by a car at a constant speed of 45 mph in 5 seconds, we first convert the speed to feet per second. Since 1 mile is equal to 5280 feet and 1 hour is equal to 3600 seconds, we have 45 mph = 66 feet per second. Therefore, in 5 seconds, the car will travel 66 feet per second * 5 seconds = 330 feet.
45 mph = 45 miles/hour (45 miles/hour) (1hr/60 minutes) (1 minutes/60 seconds) (5 seconds) = 0.0625 miles in 5 seconds Note: If you write the fractions above with a horizontal slash instead of a diagonal slash, it is easier to see what cancels out to make this problem work the way it does.
60 mph = 88 fps45/88 = 0.51136 second (rounded)