Question

On a 200 km bike cycle ride, you ride the first 90 km at an average speed of 20 m/s. What must your average speed over the next 40 km be to have your average speed for the total 200 km be? (a) 60 m/s? (b) Given this average speed for the first 90 km, can you possibly attain an average speed of 80 m/s for the total 200 km ride? Explain.​

Answer 1

Answer:

The question does not make sense. It gives data about the first 90 km. Then asks for a calculation about the next 40 km. That 40 km plus the first 90 km totals only 130 km, but the performance in that 40 km section is expected to guarantee the average speed for the total 200 km.

Answer 2

a) u= - 17 m/s

b) No

Explanation:

Pls refer to the attached pic below