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Mechanical Energy

an object of ...

Question

an object of mass 5kg is dropped from a height of 10m find its kinetic energy take g=10ms2

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Solution

Dear Student ,
When an object is dropped from a certain height then when it touches the ground then its potential energy is totally converted in to kinetic energy so , here the kinetic energy of that object is ,
$E_{k} = E_{p} = m g h = 5 \times 10 \times 10 = 500 J$

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