Friction Effected At A Arc -: Friction can be affected at a arc, when a car goes through a circle, the friction is affected on the car by restricting the movement, as the tires move side ways the friction acts on the car making the car go the opposite direction for a while
Properties Of A Force
Forces can be represented as arrows, a force has a direction, the direction of a force is represented by arrows
A force can make a object change its speed, a forward force can accelerate an object while a backward speed can slow down a object by deaccelerating it
A force can change the direction in which a object has a movement
Resultant Force
Resultant force is a single force that represents all the forces acting on a object as one
Calculation Of Resultant Force : Subtract all the external forces acting on the object
Example : A 600n force acts backwards on a car that generates 400n forward, to calculate the resultant force, we need to subtract the forward force from the backward force to get the resultant force, 600n - 400n = 200n backward
Requirements For Acceleration In A Object
If no resultant force is acted on the object, it cant accelerate, it remains at rest or will move in a constant speed at a straight line
If an objects is at rest or moving at a constant speed at a straight line, then there is no resultant force acting or effecting on the object
1.Describe how friction acts on a car moving through an arc or a circular path. Why does the car momentarily tend to move in the opposite direction, and how does friction help it navigate the curve?
2. Explain how the concept of resultant force applies when a car is accelerating on a straight road but experiences air resistance. If the car generates a forward force of 800 N and faces an air resistance of 300 N, calculate the resultant force and discuss how this affects the car’s acceleration.
3. A cyclist makes a sharp turn on a wet road and starts to skid due to reduced friction. Explain how the frictional force changes in this situation and what measures could be taken to increase friction to maintain control during the turn.
4. If a car driving at a constant speed on a straight highway suddenly encounters an incline, describe how the forces acting on the car change and how this affects its movement. What role does resultant force play in the car's ability to maintain its speed?
5. Explain how a force arrow diagram could represent the forces acting on a football when it is kicked at an angle. Identify the forward, upward, and any frictional forces, and explain how the resultant force affects the ball’s movement in terms of speed and direction.