0
the formula F.S cos angle is used (the dot product)
so if angle is 0,cos angle=1 hence work done is positive and maximum
if angle is 90 so cos 90 is 0 hence work done is minimum
if work done is negative the angle is 180
The work done by friction is always negative (opposite the force)
Since work is force x displacement, a negative value for work could mean that the displacent was negative
What else can I help you with?
Can work done by a force be negative?
Yes. If force is negative, then work will be negative.
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.
Can total work done on an object negative?
Yes, the total work done on an object can be negative. This occurs when the force applied to the object is in the opposite direction to the displacement of the object. In this case, the work done is considered negative.
Is the work done by the system is considered as positive or on the system is considered as positive?
Work done by the system is considered as PositiveWork done on the system is considered as Negative
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 the work done on a system positive or negative?
The work done on a system is positive when energy is added to the system, and negative when energy is removed from the system.
Can work done be negative in a physical system?
Yes, work done can be negative in a physical system when the force applied is in the opposite direction of the displacement.
When negative work is being done what happens to potential energy?
Negative work increases potential energy.
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.
What is the work done by the system according to the sign convention?
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.
Is the work done on a system negative in the given scenario?
In the given scenario, if the force applied to the system is opposite to the direction of the displacement, then the work done on the system is negative.
Why is it that work is negative when it comes to your current job situation?
Work may be perceived as negative in your current job situation due to factors such as a lack of job satisfaction, poor work-life balance, limited growth opportunities, or a toxic work environment.
