At Indianapolis Motor Speedway, one lap is 2.5 miles in length. The average speen of an Indy racing car is 190 miles per hour.
a. find the length of one lap in yards.
b. how many seconds would it take to complete one lap?
2007-04-26 10:46:13 · 3 answers · asked by Ballerina 5 in Science & Mathematics ➔ Other - Science
a. One lap in yards?
2.5 miles can be changed to yards.
2.5 miles * 5280 feet/mile * 1 yard/3 feet = ______ yards
b. one hour = 3600 seconds
one lap = 2.5 miles
Use a proportion.
190 miles/3600 seconds = 2.5 miles / x seconds
2007-04-26 10:53:21 · answer #1 · answered by ecolink 7 · 0⤊ 0⤋
a) 1 yd/3 ft X 5280 ft/mi X 2.5 mi/lap = 4400 yd/lap
b) 1 hr/190 mi X 3600 sec/hr X 2.5 mi/lap = 47.37 sec/lap
2007-04-26 22:26:45 · answer #2 · answered by John J 3 · 0⤊ 0⤋
1 yd/3 ft X 5280 ft/mi X 2.5 mi/lap = 4400 yd/lap
1 hr/190 mi X 3600 sec/hr X 2.5 mi/lap = 47.37 sec/lap
2007-04-26 19:18:18 · answer #3 · answered by majormomma 6 · 0⤊ 0⤋