Question summary: if the kinetic friction of a road is increased, what happens to braking distance and reaction distance (distance before brakes are applied)?
Answer states that braking distance decreases, as you'd expect. But it also states that reaction distance would decrease also. Wouldn't reaction distance be unaffected?
Assuming once you hit the breaks, your tires are sliding, increasing kinetic friction will be relevant to slowing you down. However, in the reaction distance, your tires are still rolling...
only an increase in static friction would be relevant to to the reaction distance, right?
Answer states that braking distance decreases, as you'd expect. But it also states that reaction distance would decrease also. Wouldn't reaction distance be unaffected?
Assuming once you hit the breaks, your tires are sliding, increasing kinetic friction will be relevant to slowing you down. However, in the reaction distance, your tires are still rolling...
only an increase in static friction would be relevant to to the reaction distance, right?
