define work done and give some examples
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To define, if we push a box by some distance 'd' by applying force 'F', we do some work and the multiplication of Force and 'd' is the work done.
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In science work is said to be done when
2 things are satisfied
1) a force is acting on it to displace it in the direction of its displacement
2) the object must be displaced in the direction of force
The mathematical expression for the work done by a force F is W = Fs
Then we can say the work is done
Ex : pulling of train by engine
Pulling of bullock cart by bulls
2 things are satisfied
1) a force is acting on it to displace it in the direction of its displacement
2) the object must be displaced in the direction of force
The mathematical expression for the work done by a force F is W = Fs
Then we can say the work is done
Ex : pulling of train by engine
Pulling of bullock cart by bulls
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