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What is work done?
Work done is used as a term to communicate that a predetermined task has been completed OR to specifify a percentage of the task completed by saying that work done is at (f.i.) 70%
What is relative equilibrium?
sort of trajectory, solutions of eqaution of motion of a mechanical system,
Definition of work system?
The work system refers to the system in which either the human beings or the machines participate.
How does Thermodynamics affect the work of mechanical engineers?
thermodynamics, is essential for mechanical engineers, because the subject is mainly about heat and work in system, and as an engineer that is important, especially when you have to design engines, because that is when you have to determine important factors such as the amount of work that can be done by that engine internally, and the heat it transefered and obtained.
How do hydraulics?
A positive displacement pump ( gear, vane or piston pump) is driven by a prime mover (Electrical Motor or Engine) it sucs fluid from reservior and delivers oil to system. During loading a resistance to flow creates the pressure which is utilised to do the work through cylinder for linear motion or through hydraulic motor for rotary motion, Direction of flow is changed with help of direction control valve & system pressure is regulated by pressure control valve & flow is regulated by flow control valve
A energy is?
Energy is the potential to do some work. If there is work done on a system, this work done is stored as potential energy of the system. If the system in motion, it should have kinetic energy. Hence total energy of the system PE+KE
Work done on the system is?
work done on the system: when a surrounding does work on the system the total energy increases so work done is positive..........
When the force acting on an objects points at least partially in the blank direction of the motion the work done is considered to be what?
Positive work is work done in the direction of motion, while negative work is work done in the opposite direction from the motion.opposite
When force and motion are going in the same direction is work being done?
When force is opposite to the direction of motion, no work is done. The object to which the force is applied must move in the direction of the force in order for work to be done.
When a force changes the motion of an object what is done?
work
When force is to the direction of motion no work is done?
No. Only if you are applying the same amount of force then there is no motion. If you are applying more force (the object is moving) then there is work being done.
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
What is difference between work motion and force?
motion is the movement of an object and force is the power or work done to move the object
What is an example of motion where work is done?
A woman cleaning her house
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.
What is the work done by carrying force on the back pack?
WORK in terms of Physics is only done when there is motion of an Object. So even though you may tire while standing still wearing a Pack, NO WORK is being performed on the Pack itself (in terms of Physics). Once you start walking, then there is work being done MOVING the pack forward, as well as UP and DOWN! To find the total work done on the Pack, you would have to use Vector representation of the Forces and the Motion to solve the entire System's Work Performed.
When is a thermodynamic work said to be positive?
In thermodynamics, work done by a system on its surroundings or another system is said to be positive.
