In the Netherlands, there is an annual ice-skating race called the \"Tour of the
ID: 1691744 • Letter: I
Question
In the Netherlands, there is an annual ice-skating race called the "Tour of the Eleven Towns." The total distance of the course is 2.00 x 102 km, and the record time for covering it is 5 h, 40 min, 37 s. A) Calculate the average speed of the record race. For (a), I got .033 km/s. B) If the first half of the distance is covered by a skater moving with a speed of 1.05v, where v is the average speed found in (a), how long will it take to skate the first half? Express your answer in hours and minutes.In the Netherlands, there is an annual ice-skating race called the "Tour of the Eleven Towns." The total distance of the course is 2.00 x 102 km, and the record time for covering it is 5 h, 40 min, 37 s. A) Calculate the average speed of the record race. For (a), I got .033 km/s. B) If the first half of the distance is covered by a skater moving with a speed of 1.05v, where v is the average speed found in (a), how long will it take to skate the first half? Express your answer in hours and minutes.
Explanation / Answer
total distance S = 2* 10^ 2 = 200 km =200* 10^ 3 m time t= 5 h 40 min 37 s = ( 5* 3600s) + ( 40* 60 s) + 37 s = 20437 s Average speed v = S / t = 9.786 m / s = 9.786 * ( 18 / 5) km / h = 35.23 km / h (B). distance S ' = S / 2= 100 km = 10^ 5 m speed v ' = 1.05 v = 1.05 *9.786 m / s = 10.27 m / s required time t ' = S ' / v ' = 9731.9 s = 9731.9 / 3600 h = 2.7033 h