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## anonymous 4 years ago The formula can be used to find out how many feet it will take a car to stop at different speeds. Variable d is the stopping distance in feet and s is the speed in miles per hour. How many feet would it take to stop a car with a speed of 50 mph? Answer 2.5 4 67.5 125

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1. anonymous

|dw:1353372477083:dw|

2. anonymous

67.5 @saifoo.khan final answer

3. anonymous

@skullpatrol confirm for me

4. saifoo.khan

$\Large d = \frac{1}{20s^2}$ Is this the formula?

5. anonymous

@saifoo.khan YEs

6. anonymous

and got 67.5 @saifoo.khan

7. saifoo.khan

Wait. It must be: $\Large d = \frac{s^2}{50}$

8. saifoo.khan

Replace s with "50"

9. anonymous

okay

10. anonymous

Than the answer would be 4?

11. saifoo.khan

Yep.

12. anonymous

So 125 @saifoo.khan

13. saifoo.khan

Yep.

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