The Formula $s = k \sqrt { d }$ Relates the Speed

question 8

Multiple Choice

The formula $s = k \sqrt { d }$ relates the speed $s$ (in mph) of a car and the distance $d$ of the skid when a driver hits the brakes. On wet pavement, $k = 3.24$ . How far will a car skid if it is going 59 mph?

• A)about 355 ft
• B)about 298 ft
• C)about 332 ft
• D)about 377 ft
• E)about 320 ft

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