Oh, dude, it's like this: when work is done on the system, it's like the system is just chilling and getting stuff done to it, so it's negative because it's like, "Ugh, why are you messing with me?" But when the system does work, it's like, "Yeah, I got this," so it's positive because it's like, "I'm in control, baby!" So, yeah, that's why it's negative when done on the system and positive when done by the system.
In this case, V would be negative, and work w would be positive.
when work is positive and when playing is negative
Yes Work can be positive or Negative.
The rate at which work is done is known as power. It is defined as the amount of work done per unit of time and is typically measured in watts (W) in the International System of Units (SI). One watt is equivalent to one joule of work done per second. Power can also be calculated using the formula ( P = \frac{W}{t} ), where ( P ) is power, ( W ) is work, and ( t ) is time.
Very interesting approach! When Paul presses a spring then work done by Paul is positive and work performed by spring is negative. As per scalar product we have to use cos@ If @ is acute then cos @ is +ve and if @ is obtuse then it becomes -ve As force applied and displacement are in the same direction as in the case of Paul's attempt then work becomes positive But in case of spring's opposing force the displacement is in opposite direction and so work is negative
Work done by the system is considered as PositiveWork done on the system is considered as Negative
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.
The work done on a system is positive when energy is added to the system, and negative when energy is removed from the system.
The work done by the system is positive if the system does work on its surroundings, and negative if work is done on the system by the surroundings.
work done on the system: when a surrounding does work on the system the total energy increases so work done is positive..........
Positive work is done in a physical system when the force applied to an object is in the same direction as the displacement of the object.
A thermodynamic work is said to be positive when the system does work on the surroundings. This occurs when energy is transferred from the system to the surroundings, resulting in a decrease in the internal energy of the system.
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.
There are two conventions. One says that work done on the system is positive, the other says that work done by the system is positive. Chemists tend to use the former, physicists tend to use the latter... one of several reasons it's not a good idea to take thermodynamics in chemistry and physics at the same time.
The significance of the work done on the system in relation to the sign convention is that it helps determine whether work is being done on the system (positive work) or by the system (negative work). This understanding is crucial in analyzing the energy transfer within the system and its surroundings.
POSITIVE work is done when the direction of displacement and gravitational force is same. This makes an angle of zero degrees. Fd?FScos0 equals +1. The work done is positive.
Positive.