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Newton's first law states that, simply, an object in motion will stay in motion unless acted upon by an unbalanced force. It also gives the idea that an object that is at rest will stay at rest unless acted upon by an unbalanced force. Friction mostly has to do with the first part of Newton's first law.
The unbalanced force can be practically anything, like a shoe or tree. If there isn't anything that is going to counteract with the moving object, it will still stop. Why? Friction. It counts as an unbalanced force because it interferes with the motion of the object and in addition to that, it moves in the opposite direction of the moving object.
Friction acts as a force that opposes the motion of an object, which can prevent an object from continuing in a state of uniform motion as described by Newton's first law. In the absence of friction, an object would keep moving at a constant velocity indefinitely. Therefore, friction is a crucial factor in determining how objects move in response to external forces.
The first law says that if no force acts on a mass its velocity is constant.
Friction would, of result in a force on the mass, so the law would not apply.
The first law actually defines frames of reference in which the remaining laws apply. Suppose you were sitting in an accelerating car watching this mass on which no force was acting. Its velocity would not appear to constant. So the first law in effect says this is not a good frame of reference for the purposes of Newtonian physics.
The good frames are called "Inertial Frames".
Because of gravity, its hard to find an "Inertial Frame" in nature. For short periods of time the inside of the International Space Station is a good choice. Here on earth you have to fudge things by treating gravity as a "force" even though you feel the force of gravity but aren't being accelerated!
But Einstein's Theory of General Relativity allows you to do physics in any frame of reference (from your accelerating car, for example, or on a roundabout - in General Relativity, centrifugal force (the force that pulls you outwards on a roundabout) is as real as gravity - there is none of this nonsense about "real" versus "fictitous"
forces.
That's because Newton's First Law basically considers the case that no forces act on an object, or that the net force is zero. With friction, there is always a force, and this force is quite often unbalanced.
in opposite way,the action and reaction works but it depends on each others B TO A and A TO B
It does not. It is just another force that needs to be taken into account when calculating the net force acting on a body.
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How does friction affect perpetual motion machines?
Friction opposes motion and causes energy loss in perpetual motion machines, leading to a decrease in efficiency. It plays a significant role in preventing the perpetual motion machines from achieving perpetual motion, as it continuously works against the machine's motion without providing any energy input.
Can you give a conclusion about friction?
Friction is a force that opposes the relative motion or tendency of such motion of two surfaces in contact. It plays a crucial role in everyday life, affecting our ability to walk, drive, and interact with our environment. Understanding and managing friction is essential for improving efficiency and safety in various applications.
What is the force opposing the motion of a car?
The force opposing the motion of a car is primarily friction between the tires and the road surface. This friction is known as rolling resistance and increases with factors like the weight of the vehicle, tire design, and road conditions. Additionally, air resistance (drag) also plays a role in opposing the car's motion at higher speeds.
What is mechanical motion?
Mechanical motion refers to the movement of an object resulting from forces and mechanisms such as gears, pulleys, and levers. It is governed by the principles of physics, including concepts like inertia, acceleration, and friction. Mechanical motion plays a significant role in many everyday devices and systems, from cars and bicycles to machines in industrial settings.
Does a ball need friction to roll?
Yes, friction is essential for a ball to roll. Without friction between the rolling ball and the surface it is on, the ball would simply slide instead of rolling. Friction provides the necessary force for the ball to rotate and move forward as it rolls.
How does friction affect perpetual motion machines?
Friction opposes motion and causes energy loss in perpetual motion machines, leading to a decrease in efficiency. It plays a significant role in preventing the perpetual motion machines from achieving perpetual motion, as it continuously works against the machine's motion without providing any energy input.
Can you give a conclusion about friction?
Friction is a force that opposes the relative motion or tendency of such motion of two surfaces in contact. It plays a crucial role in everyday life, affecting our ability to walk, drive, and interact with our environment. Understanding and managing friction is essential for improving efficiency and safety in various applications.
What is the force opposing the motion of a car?
The force opposing the motion of a car is primarily friction between the tires and the road surface. This friction is known as rolling resistance and increases with factors like the weight of the vehicle, tire design, and road conditions. Additionally, air resistance (drag) also plays a role in opposing the car's motion at higher speeds.
What is friction?
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact.
What is mechanical motion?
Mechanical motion refers to the movement of an object resulting from forces and mechanisms such as gears, pulleys, and levers. It is governed by the principles of physics, including concepts like inertia, acceleration, and friction. Mechanical motion plays a significant role in many everyday devices and systems, from cars and bicycles to machines in industrial settings.
What friction is used while driving?
1) Friction of the tires on the road 2) Friction in the clutch 3) Friction in the brakes 4) Friction of driver against controls and seat Friction of air also plays a part in resisting motion; this can be used to improve road holding when we deflect it into a down force, hence the spoilers on F1 cars, for example
What role friction plays in hockey?
Because friction is a force acting against the forward motion of the puck, friction is going to play a role in slowing down the puck as it glides across the ice. The friction is not going to be great enough to stop it instantly, but if not touched by another stick for some time it will come to a stop.
Does a ball need friction to roll?
Yes, friction is essential for a ball to roll. Without friction between the rolling ball and the surface it is on, the ball would simply slide instead of rolling. Friction provides the necessary force for the ball to rotate and move forward as it rolls.
What causes a ball to stop rolling?
A ball stops rolling when the force propelling it forward, such as a push or a slope, is no longer present. Friction between the ball and the surface it's rolling on also plays a role in slowing it down until it eventually comes to a stop.
What is the cause of motion?
Motion is caused by a change in an object's position relative to a reference point. This change can be influenced by forces acting on the object, such as gravity, friction, or applied external forces. Inertia also plays a role in maintaining an object's state of motion or rest.
What is friction like?
Friction is the force that resists the relative motion or tendency of motion between two surfaces in contact. It can be influenced by factors like surface roughness, the nature of materials, and the force pressing the surfaces together. Friction plays a crucial role in everyday life, affecting activities like walking, driving, and even simple tasks like writing.
Application of friction?
Friction is commonly used in everyday life to help us walk on surfaces without slipping, drive vehicles, and stop moving objects. In engineering, friction is utilized in brakes, clutches, and gear systems to control motion and ensure safety. Additionally, friction plays a crucial role in sports equipment like shoes and tires to provide better grip and stability.
