Answer:
The skid distance to be used is 54 feet.
Step-by-step explanation:
Given:
Four skid marks on the highway.
[tex]52,52,56,56[/tex] in feet.
We have to find the skid distance.
The skid distance that will be used to further calculate the skid speed is actually the mean skid distance.
Mean skid distance (m) :
⇒ [tex](m)=\frac{Sum\ of \ the\ skid\ marks }{Number\ of\ skid\ marks}[/tex]
⇒ [tex](m) =\frac{52+52+56+56}{4}[/tex]
⇒ [tex](m) =\frac{216}{4}[/tex]
⇒ [tex](m)=54[/tex] feet.
So the skid distance to be used is 54 feet.