This is not related to physics but to the driver's attention when approaching a curve. If the speed is kept the same, it's more difficult to control the vehicle specially if the driver is stressed, drunk, tired or sleepy. The probability of an accident would increase on this situation.
False
Nope. It's to help the centripetal force so you won't swirl out. It's in the physics of the thing. . . . Don't quite completely understand it myself.
Parabolic curve
Yes it does. In physics, the term velocity means both speed and direction of motion, not just speed, so if you change direction you change velocity.
No. A cross wind will cause it to curve slightly on the horizontal plane and gravity will make it curve vertically, but you cannot MAKE it curve unless you possess powers of telekinesis.
No passing to the left should be done when you are approaching a crest or curve in the highway. A driver's view is obstructed during these times and passing would be dangerous.
A blind curve is a dangerous curve on a roadway in which drivers cannot see approaching traffic.
which sign tells you to slow down because you are approaching a double curve in Texas?
You should never pass a car when you are approaching a hill, a curve, an intersection, a railroad crossing or when other traffic approaching is close enough to present a hazard. Also you should know that it is illegal to drive over the posted speed limit when you are passing.
gradually slow down
turn your steering wheel
The yellow S curve sign
false
The curve in the road was thick with ice, causing many accidents on the highway.
Yes
When approaching a curve to the right on a narrow road you should make sure you slow down to keep your tires on your side of the road. Oncoming traffic will need to maintain tight control to navigate the curve and will fight drifting into the opposite lane on the curve.
A yellow caution sign depicting a "switch back curve" or a double " S ".