The speed of a car, s , can be estimated after a crash by using the formula
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Question:
The speed of a car,
s,
can be estimated after a crash by using the formula
s=30df
where
d
is the distance that the car skidded until a collision and
f
is the coefficient for friction which depends upon the driving surface. Calculate
s
if the distance a car skidded was 32 feet and the coefficient for friction in this case was 0.4.
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