Question: During a very quick stop, a car decelerates at 6 . 0 0 x ms 2 . ( b ) How many revolutions do the
During a very quick stop, a car decelerates at xms
b How many revolutions do the tires make before coming to rest, given their initial angular velocity is xrads
c How long does the car take to stop completely?
d What distance does the car travel in this time? Hint: How is the arc length traveled by a point on the tire's rim related to the horizontal distance traveled by the tire?
e What was the cars initial velocity?
f Do the values obtained seem reasonable, considering that this stop happens very quickly?
The car is initially travelling at
xms so a stopping distance of
xm in
xs seems
reasonableunreasonable
for a panic stop.
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