Given the speeds of each runner below, determine who runs the fastest.

Emily runs 15 feet per second.

Jake runs 109 feet in 8 seconds.

Stephanie runs 1 mile in 467 seconds.

Tony runs 760 feet in 1 minute.

A. Emily

B. Jake

C. Stephanie

D. Tony

option A

Explanation:

we will converts all the velocity into SI unit then we can tell who is running fast.

a) Emily runs at 15 ft/s

1 ft/s = 0.3048 m/s

15 ft/s = 4.572 m/s

b) Jack runs at 109 ft in 8 s

1 ft = 0.3048 m

109 ft = 33.22 m

speed = 33.22/8 = 4.152 m/s

c) Stephanie runs 1 mile in 467 seconds

1 mile = 1609.34 m

speed = 1609.34/467

v = 3.45 m/s

d) Tony runs 760 feet in 1 minute.

1 ft = 0.3048 m

760 ft = 231.65 m

speed = 231.65/60 = 3.86 m/s

from the above solution Emily runs fastest.

the correct answer is option A