Question

How many seconds does it take a race horse to run six furlongs at 40.7 miles per hour if: I furlong = 40 rods; 5.5 yards = 1 rod; and 5280 feet =1 mile?

Answer 1

Distance traveled by the race horse=6 furlongs

Converting the distance from furlongs to rods: 40 rods =1 furlong

`6 furlongs*(40rods)/(1furlong) =240rods`

Converting the distance from rods to yards, feet and miles: 5.5 yards = 1 rod, 3foot =1 yard, 1 mile = 5280 feet.

`240rods*(5.5yards)/(1rod)*(3foot)/(1yard)*(1mi)/(5280feet)=0.75mi`

The given speed of race horse = 40.7mi/hr

Calculating the time required:

`0.75mi*(1hr)/(40.7mi)*(60min)/(1hr)*(60s)/(1min)= 66.34s`

Therefore, 66.34 s is required for a race horse to run six furlongs at 40.7 miles per hour.