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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 is workdone equal to energy?
It helps to think of "work" as the transfer of certain types of energy.
What often happens when you rub one object with another object?
it depends on the charge...if it is positive on a negative they create static if it is positive on a positive or a negative on a negative...nothingAnother view:The friction develops heat.
When is workdone by force is zero?
work done on an object zero by a force would be zero isif the displacement of the object is zero
How does a balloon get a charge from rubbing it on the hair?
Friction pulls electrons from the hair to the balloon. This makes the hair positive, and the balloon negative.
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.
What is the difference between positive and negative friction?
I got chills and there multiplying
Is applied force pulling or pushing?
it depends upon the systems displacement and your workdone
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.
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.
How is workdone equal to energy?
It helps to think of "work" as the transfer of certain types of energy.
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.
How can friction be both a positive and negative aspect in your every day lives?
a positive aspect is that friction stops your car from sliding so you stay on the road a negative aspect is that when it comes to machinery engineers need to calculate in friction. the friction that comes with making products will make companys actually lose money. you need more energy to overcome friction. this is why we haveto eat all ofthe food we do. to overcome all the forces of friction acting on us we need to fuel our bodys.
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
