Frnds pls give the 9 question ans
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its not clear pls give a clear picture or type the question
Upendta:
I also don't undtestand
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Hi there ,
We say that work is done when-
i)a force acts on a body
ii)the body is displaced along a distance in the SAME direction of the force.
Here in the first case (i) ,
The boy is lifting the body upwards.
Hence force is acting on the body.
Second , the suitcase is getting displaced from its original position and along the SAME DIRECTION of the force.
Hence work done is done
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In the second case (ii) ,
Force is being applied , but displacement is zero.
Work done = Force x Displacement
Here , when displacement is zero , work done would be also zero.
We say that work is done when-
i)a force acts on a body
ii)the body is displaced along a distance in the SAME direction of the force.
Here in the first case (i) ,
The boy is lifting the body upwards.
Hence force is acting on the body.
Second , the suitcase is getting displaced from its original position and along the SAME DIRECTION of the force.
Hence work done is done
-------------------------------------------------------------------------------------------------------------
In the second case (ii) ,
Force is being applied , but displacement is zero.
Work done = Force x Displacement
Here , when displacement is zero , work done would be also zero.
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