So, in an unbanked turn, the force responsible for turning the car is
the friction force between the tires and the road
.
What is responsible for holding a car in a curve?
The centripetal force causing the car to turn in a circular path is due to
friction between the tires and the road
. A minimum coefficient of friction is needed, or the car will move in a larger-radius curve and leave the roadway.
Which force is responsible for holding a car in a?
Friction
is a type of force that keeps objects in place or slows them down. This lesson explores friction in greater detail and provides examples of friction in action.
Which force is responsible for holding a car in a frictionless banked curve quizlet?
Which force is responsible for holding a car in an unbanked curve?
the coefficient of kinetic friction between the road and the tires
. the mass of the car. The earth exerts the necessary centripetal force on an orbiting satellite to keep it moving in a circle at constant speed.
Which one of the following holds a car on a frictionless banked curve?
Question: Which one of the following forces holds a car on a frictionless banked curve?
the vertical component of the car’s weight the horizontal component of the car’s weight the vertical component of the normal force the reaction force to the car’s
weight the horizontal component of the normal force.
What is an unbanked curve?
An unbanked curve is simply
a curve (or a turn) that lies flat on the ground (parallel to the horizontal)
. … It is precisely this static frictional force that creates the centripetal force required to accelerate the car along the curved path.
What force’s keep a car from sliding when it goes around a banked turn?
Both the normal force, N (blue components) and the
friction force
, f (red components) have been resolved into horizontal and vertical components. Notice that the friction force acts up the incline, to keep the car from sliding toward the center of the turn.
In which situation is there zero net work done?
If the constant velocity is horizontal (sliding a book across a table) and there is
friction
, then work is done against friction. That is because a force in the direction of the motion, equal and opposite the force of the friction, was required to nullify the friction yielding a net force of zero.
In which of the following circumstances does the force do positive work on the object?
If the kinetic energy of an object increases from one moment to the next
, positive work is being done on the object.
What is responsible for holding a car in a frictionless banked curve?
The centripetal force causing the car to turn in a circular path is due to
friction
between the tires and the road. A minimum coefficient of friction is needed, or the car will move in a larger-radius curve and leave the roadway.
Can you move with constant velocity but not constant speed?
No, it doesn’t.
Velocity is a vectorial quantity, it has magnitude (speed) and direction. Even though the speed is constant in this particular example, the direction changes all the time.
Can a car be accelerating when its speed is constant quizlet?
Yes
. Velocity and acceleration need not be in the same direction. A car moving north that slows down, for example, accelerates toward the south. … Any object moving in a circle or along a curve is changing velocity (accelerating) even if its speed is constant, because its direction is changing.
What coefficient of friction do car tires need on a flat curve?
That is, we must have a coefficient of static friction
of
s
= v
2
/g r
to provide the friction force to allow a car, traveling at speed v, to make it around a flat curve of radius r. This is the maximum speed that a curve of radius r can be taken when the coefficient of static friction between tires and pavement is
s
.
How do I calculate normal force?
The weight of an object equals the mass of the object multiplied by the acceleration of gravity. Multiply the two values together. In order to find the normal force, you need to
multiply the weight of the object by the cosine of the angle of incline
.
What direction is centripetal force?
As the centripetal force acts upon an object moving in a circle at constant speed, the force always acts inward as the velocity of the object is directed tangent to the circle. This would mean that the force is always directed
perpendicular to the direction that the object is being
displaced.
What is banking of curve?
Banked Curves. A banked curve is a
curve that has its surface at angle with respect to the ground on which the curve is positioned
. The reason for banking curves is to decrease the moving object’s reliance on the force of friction.
