An object of mass 10kg released from a height strikes the ground with an energy of 300j. From what height was it released?
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use energy conservation
mgh = kinetic energy = 300 (given)
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↪Answer !!↩
When object is about to strike the ground the object have highest kinetic Energy that is equal to initial potential Energy of that object = 300 j
Potential Energy = 300 j
=> mgh = 300 j
=>10 × 10 × h = 300
h = 300/100
h = 3 m.
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