A block is suspended from a spring and causes an extension of \(2\) cm. It is now imparted a kinetic energy \(E\) so that the block rises up by exactly \(2\) cm. If the block were to be given the same kinetic energy upward, without being attached to a spring, it would rise up by:
1. \(1\) cm 
2. \(2\) cm 
3. \(4\) cm 
4. \(8\) cm 
Subtopic:  Elastic Potential Energy |
From NCERT
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