An 18-year-old runner can complete a 10.0-km course with an average speed of 4.48 m/s. A 50-year-old runner can cover the same distance with an average speed of 4.18 m/s. How much later should the younger runner start in order to finish the course at the same time as the older runner?

Answer 1

k i got this one..
find the t it takes for each runner using t=d/v....then subtract the times, and you have the answer !

Answer 2

thnx......i found out my mistake. i didn't convert the distance to meters :)

Answer 3

okay ! and which q'n did u get 255 m for?

Answer 4

lol sorry ma internet went all hay wire on me!!!
i got 255 m for the entire run for questin 7

Answer 5

kk got that. did you get number 18?

Answer 6

no i didnt. did you get 13 and 14

Answer 7

nope :(