Question
You can run 8.8m/s,20% faster than your brother. How much head start should you give him in order to have a tie race over 110m?please help:(
Answers
Henry
r1 = 8.8 m/s = Your speed.
r2 = 0.8 * 8.8 = 7.04 m/s = Your bro. speed.
8.8t = 110
t = 12.5 s
7.04t = 110-d
7.04*12.5 = 110-d
d = 110-88 = 22 m. Head start.
r2 = 0.8 * 8.8 = 7.04 m/s = Your bro. speed.
8.8t = 110
t = 12.5 s
7.04t = 110-d
7.04*12.5 = 110-d
d = 110-88 = 22 m. Head start.