Checking whether my conclusion are correct or not regarding turning of car/bike on flat road Suppose a car/bike is moving in a circular manner on a flat surface having some friction. If it's moving with a constant speed, am I right in the below conclusions with the reasons? (Assume the person who is driving the car/bike doesn't lean or do any such type of movements).

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*There cannot be a friction component along the tangential direction of the circular path it makes. It can have a friction component along the tangential path, if and only if the car speed was increasing/decreasing from the internal mechanism inside car.

*In the constant speed case, the friction is only acting radially and it is static in nature.

*Even though it might seem that as the car is moving, friction must be acting in a kinetic nature as kinetic friction is only acting while something is moving. But it's not so in this case, is it the only case where friction is static even though car is moving.

*Only the radial static friction is responsible for this circular motion. No other horizontal force is there which can contribute in making the bike/car turn

 A: No, first statement is not true. The number of friction forces which are acting here are 2, i.e one along the circular path which is making the car move even if it's not being accelerated (although the net force will be zero on the vehicle in the case of constant speed if you only look tangentially. But yes, two types of friction forces are present) and the second will be radially inwards which will act as a centripetal force directed radially inwards.
Statement 2: It's correct if there is no slipping along the radius of curvature then friction will be static.
Statement 3: It's also correct the friction will be static even though the car is moving, because the friction force has direction and according to the well said statement about kinetic friction i.e "kinetic friction opposes the relative motion", so according to this, There should be a relative motion along the radius of curvature to introduce kinetic friction in the game Radially. As stated in this scenario there is no relative motion with the ground radially, so the kinetic friction will not be acting here. But in the case of tangential motion, yes it will.
Statement 4: First of all the statement can be much better if you clarify the word Horizontal force. Coming to the last statement which states Only the radial static friction is responsible for this circular motion comes out to be very true.
