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What is the difference between net work done and work done?
Let us start by considering the total, or net, work done on a system. Net work is defined to be the sum of work done by all external forces—that is, net work is the work done by the net external force Fnet. The work done is (F cos θ)i(ave)di for each strip, and the total work done is the sum of the Wi.
What is the net work done on an object?
The net work on an object is equal to the object’s final kinetic energy minus the initial kinetic energy.
Whats the difference between work and work done?
The work done on the mass includes the work of all the forces, both yours and the force of friction (the work of the resultant force) which is equal to the change of kinetic energy. Recall: work is force times displacement. Your work is equal to your force times the displacement of the mass.
What is the difference between work done on a system and work done by a system?
Work done on the system means something outside the system did something (other than heat flow into the system) to increase the internal energy of the system. Work done by the system means the system’s internal energy decreased as it did work on something outside the system.
How do you calculate net work done?
The formula for net work is net work = change in kinetic energy = final kinetic energy – initial kinetic energy.
What is the difference between work done by a fuel and work done by a moving body?
work done by fuel is conversion of chemical energy into mechanical whereas work done by moving object is due to its displacement by the application of force.
What is the net work done on the box?
“net” just means sum, so the net work is just the sum of the work done by all of the forces acting on the box.
What is the difference between work and work done in physics?
In physics, we say work is done when force applied to an Object causes displacement of object. When force applied on an object doesn’t cause displacement of object we say that no work or zero work is done. Or you can say when displacement of object is zero then work is zero(W=Force × displacement).
What is the difference between work done on the system and work done by the system?
What is the net work done in physics?
There is no such thing as net work done in Physics. There is only two concepts work done on the object and work done by the object. When work is done on the object, the object gains energy. When work is done by the object , the object looses its energy.
What is the difference between net work and total work?
The force on an object can be a function of position or time, and could represent external forces placed on the system. Net and total work refer to the same concept, the sum of all work done on an object. For your example, you cannot simply say work is 0 because the object returns to its starting location.
What is the difference between work done and energy?
Difference Between Work done and Energy. • Work is transfer of energy. • Work is done on an object when you transfer energy to that object. • The change in the kinetic energy of an object is the net work done on it.
What is the relationship between work done on an object?
There is only two concepts work done on the object and work done by the object. When work is done on the object, the object gains energy. When work is done by the object , the object looses its energy. By conservation of energy, the total energy of a system remains constant.