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negative work

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Q: Does air friction do positive negative or zero work on your car when you are coasting?
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When work is positive and when is negative?

when work is positive and when playing is negative


Can work positive or Negative in physics how?

Yes Work can be positive or Negative.


Should positive go to positive in a circuit?

No, this will not work. Postitive to Negative/Negative to Positive will work.


What are positive and negative work ethics?

what is positive and negative


How can friction be a positive thing in our daily lives?

Without friction, cars wouldn't work.


When swimming work done is positive or negative?

Positive.


When do you say that the work done is positive or negative?

There are different conventions as to what work is negative and what work is positive. The convention used by engineers and physicists is that work done BY the system on its surroundings is positive while work done ON the system by its surroundings is negative. Chemists reverse these conventions.


How do you determine a work done is positive sign or negative sign?

If work is done on the system then it has a negative sign. If work is done by the system then it has a positive sign.


Is a negative a positive is what?

A Negative plus a positive = a negative because negative and a positive cannot work together Negative + Negative= Positive Positive + Positive = Positive when your dealing with numbers such as : -2 + 2 would equal a negative 4 -2 +-2 would equal a positive 4


Which two forces always do negative work?

Friction and Air Resistance.


Explain why the work done of sliding friction is negative when an object undergoes a dispalcement on a rough surface?

Work is done when a force is applied over a distance. If the force acts opposite the direction of motion, like friction, then the work is negative.


If a process is carried out at constant pressure P and the volume V of the system decreases then V is negative positive and the work w is negative positive zero?

In this case, V would be negative, and work w would be positive.