Question

a race car travels around a circular track at a constant speed with a circumference equal to 3 miles. if the car records a time of 10 minutes for 7 laps, what is the linear speed, to the nearest tenth, of the race car in miles per hours?

Answer 1

Answer: The speed of the race car is 126.0 miles per hour.

Explanation:

we know,

speed = distance/time

total distance covered = 3×7= 21 miles.

time taken= 10 minutes= 1/6 hours.

Speed= 21 miles ÷ 1/6 hours = 126miles/hour.