what is work done?Conditions of work done. Formula of work done.
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work is said to be done when a force applied on an object causes displacement of the object.
when a force applied on an object causes displacement of the object this is the condition of work done.
work = force × displacment
when a force applied on an object causes displacement of the object this is the condition of work done.
work = force × displacment
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1)Work done and energy transferred are measured in joules (J). The work doneon an object can be calculated if the force and distance moved are known. A change in momentum happens when a force is applied to an object that is moving or is able to move. The total momentum in an explosion or collision stays the same.
(2)If a force is applied but the object doesn't move, no work is done; if a force is applied and the object moves a distance d in a direction other than the direction of the force, less work isdone than if the object moves a distance d in the direction of the applied force.
3)Whenever 'work' is done energy is transferred from one place to another. The amount of work done is expressed in the equation: work done = force xdistance. Power is a measure of how quickly work is being done. Power is expressed in the equation: power = work done / time taken.
(2)If a force is applied but the object doesn't move, no work is done; if a force is applied and the object moves a distance d in a direction other than the direction of the force, less work isdone than if the object moves a distance d in the direction of the applied force.
3)Whenever 'work' is done energy is transferred from one place to another. The amount of work done is expressed in the equation: work done = force xdistance. Power is a measure of how quickly work is being done. Power is expressed in the equation: power = work done / time taken.
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