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the following measurements from yaw marks left at the scene of an accident were taken by law enforcement officers. using a 31-ft length chord, the middle ordinate measured approximately 3 ft. the drag factor for the road surface is 1.02. a. determine the radius of the yaw mark to the nearest tenth of a foot. fill in the blank 1 41.5 b. determine the minimum speed that the car was going when the skid occurred to the nearest tenth.

Respuesta :

The minimum speed of the car is 11.1634 mph and the radius of the yaw mark is 11.2 ft.

Yaw marks are always curved. They are, initiated by a steering input. They're what's left from a tire that is still rolling but is simultaneously sliding laterally.

The radius of the yaw mark to the nearest tenth of a foot = r

The minimum speed = s

Length of the chord = c = 31 ft

Middle ordinate = m = 3 ft

Drag factor = f = 1.02

The formula for determining radius from a chord and middle ordinate is =

= r² = (c² / 8 x m) + (m / 2)

=  r² = (31² / 8 x 3) + (3 / 2)

= r² = 41.541

= r = 11.2 ft

(b) Now minimum speed = s

= s = √(15 X f X r)

= s = √ (15 X 1.02 X 11.2)

= s = 11.1634 mph

To know more about Yaw Mark:

https://brainly.com/question/27651039

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