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Does friction provide negative acceleration or positive acceleration?
Friction opposes motion. As long as you define the direction in which the object is moving to be positive, the acceleration due to friction will be negative. If you think about it, you start out with positive speed and friction decreases the speed, so adding friction subtracted from the speed. Note: Friction is counterintuitive when you start dealing with rolling without slipping. This answer doesn't address this.
How can friction do positive work in a mechanical system?
Friction can do positive work in a mechanical system by converting kinetic energy into heat energy, which can be useful in certain applications such as braking systems or clutches.
Is the work done by friction always negative?
No, the work done by friction can be either positive or negative, depending on the direction of the force and the displacement of the object.
Is friction negative on a free body diagram?
It depends on how the axes are defined. If the for motion in one dimension, if the positive direction is defined direction of motion, then yes, because friction opposes motion. If the motion is in two or three directions, then the force of friction is a vector and, strictly speaking, neither positive not negative. The sign (if any) of any force is arbitrary, as long as all forces in the diagram use the same frame of reference.
What does the friction graph reveal about the relationship between surface roughness and the force required to overcome friction?
The friction graph shows that as surface roughness increases, the force required to overcome friction also increases. This indicates that there is a positive relationship between surface roughness and the force needed to overcome friction.
How can friction be positive and negative?
Friction can be negative or positive depending on the direction in which your measures are positive.
What is the workdone by central force?
zero
How can friction be a positive thing in our daily lives?
Without friction, cars wouldn't work.
Does friction provide negative acceleration or positive acceleration?
Friction opposes motion. As long as you define the direction in which the object is moving to be positive, the acceleration due to friction will be negative. If you think about it, you start out with positive speed and friction decreases the speed, so adding friction subtracted from the speed. Note: Friction is counterintuitive when you start dealing with rolling without slipping. This answer doesn't address this.
How can friction do positive work in a mechanical system?
Friction can do positive work in a mechanical system by converting kinetic energy into heat energy, which can be useful in certain applications such as braking systems or clutches.
Is applied force pulling or pushing?
it depends upon the systems displacement and your workdone
What is the difference between positive and negative friction?
I got chills and there multiplying
Why applying force to an object does not always result in work being done?
When a force (no matter how large it may be) is applied to any object without a distance being moved,it cannot be workdone because,workdone = force x distance.
Explain why applying force to an object does not always result in work being done?
When a force (no matter how large it may be) is applied to any object without a distance being moved,it cannot be workdone because,workdone = force x distance.
Is the work done by friction always negative?
No, the work done by friction can be either positive or negative, depending on the direction of the force and the displacement of the object.
How is kinetic friction a negative and positive thing on a car or moving object?
In a car Friction creates Energy losses that result is a loss of mechanical efficiency, and therefore lower gas mileage. On the positive side friction in the Braking System transform energy of motion into HEAT, allowing the car to stop.
What is electro static potential at a point?
it is defind as the amount of work done to bring a unit positive charge from infinity to that point in the electric feild it is devoted by V .: electric potential = workdone/charge V=w/q si unit is v
