Table of Contents
- 1 What happens if force and friction are equal?
- 2 Can there be friction even when the object does not move?
- 3 Why is force equal to friction?
- 4 What is the result of friction when two objects are rubbed?
- 5 How does friction affect a moving object?
- 6 When two surfaces rub do the irregularities of one surface get caught on those of the other surface?
- 7 How does friction affect the movement of rectangular block?
- 8 What happens to friction when the body is in motion?
What happens if force and friction are equal?
If friction is equal to the applied force, then the body either at rest or it is in uniform motion, not acceleration. Yes, the object certainly is moving even-though ‘no net, unbalanced’ force is acting on it. That is, acceleration is just the rate of change of velocity.
Can there be friction even when the object does not move?
There is friction even when an object is not moving but there is an external force. That allows a car to stay parked on a slope. Friction force, when there is no external force and no motion (relative to surrounding medium), is zero.
Can friction force move an object?
Force can make things move, change shape or change their speed. Some forces are direct and happen when two things touch (like a foot kicking a ball) or over a distance (such as a magnet or gravity). Friction is the force between two objects in contact with each other that will resist an attempt to move them.
Is friction always equal to applied force?
The frictional force opposing the motion of the crate is equal to the applied force but acting in the opposite direction. This frictional force is called static friction. When we increase the applied force (push harder), the frictional force will also increase until it reaches a maximum value.
Why is force equal to friction?
According to the laws of physics, the force of friction, Ffriction, always acts to oppose the force you apply when you try to move an object. Friction is proportional to the force with which an object pushes against the surface you’re trying to slide it along.
What is the result of friction when two objects are rubbed?
For instance, when two objects rub together, friction causes some of the energy of motion to be converted into heat. This is why rubbing two sticks together will eventually produce a fire. That’s why lubricants, or liquids, are often used to reduce the friction — and wear and tear — between moving parts.
Does friction equal force?
When there is relative motion between two surfaces, there is a resistance to the motion. This force is called friction. Friction acts opposite to the direction of the original force. The frictional force is equal to the frictional coefficient times the normal force.
How does friction affect the motion of an object?
The force of friction opposes the motion of an object, causing moving objects to lose energy and slow down. When objects move through a fluid, such as air or water, the fluid exerts a frictional force on the moving object.
How does friction affect a moving object?
When two surfaces rub do the irregularities of one surface get caught on those of the other surface?
When two surfaces rub,the irregularities of one surface get caught on those of the other surface. What is friction? Friction is the force that one surface exerts on another when to rub against each other.
Why is friction always opposite to the motion?
Now if relative motion tends to happen there will be a friction force and for a fact we know that it acts in a direction such that to bring both bodies to same speed which means it will be in the opposite direction of velocity of either body. Hence the phrase friction opposes relative motion.
What happens when you apply force equal to kinetic friction?
Answer Wiki. 5 Answers. , Physics teacher. If the body is at rest when you apply the force equal to kinetic friction, then the body wont move because it moves only when the applied force is greater than or equal to maximum static frictional force. If the body is already moving, then the net force = force applied – kinetic friction = 0.
How does friction affect the movement of rectangular block?
The rectangular block moves only after you apply a minimum force that’s because of friction. Let’s call it Fs. When you increase the magnitude from 0 to Fs. The frictional force also increases proportionally. But it has its limitations it can oppose up to some extent (Fs) beyond that the frictional force remains constant against the force we apply.
What happens to friction when the body is in motion?
Friction is different while the body is at rest and while the body is in motion. Even after applying a force, if the body is not in motion, it implies that the applied force equals the maximum frictional force. At this position, even a very small excess force applied will set the block in accelerated motion.
Why does static friction change when an object is at rest?
Because of motion, static friction changes to a lesser kinetic friction. Therefore the force uphill (friction) is less than the force downhill. At that moment the net force is downhill. So the net force downhill creates an acceleration. What type of friction do you have while an object is at rest?