Question

Let's take a look at something here. I thought the 15 mph for a base runner was kind of slow. I mean, it was a heck of lot faster than I could run, but still 15 mph, equates to about 6.7 m/s. We saw earlier that Usain Bolt average speed was 100 m/9.59 s which is 10.4 m/s. I just looked the NCAA men's 100 m dash record this year--10.82 s. Calculate that speed in in mph.

Answer 1

Answer:a

Step-by-step explanation:

Answer 2

The speed is 20.70 mph.

Step-by-step explanation:

Given that,

Speed = 6.7 m/s = 15 mph

`1\ m/s = (15)/(6.7)`

`1 m/s =2.24\ mph`

In 10.4 m/s,

`10.4\ m/s=2.24*10.4\ mph`

`10.4\ m/s=23.3\ mph`

If 100 m record in 10.82 sec

We need to calculate the speed

Using formula of speed

`v = (d)/(t)`

Put the value into the formula

`v=(100)/(10.82)`

`v=9.242\ m/s`

`v=9.242*2.24\ mph`

`v=20.70\ mph`

Hence, The speed is 20.70 mph.