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| Answer» <html><body><p><strong>Energy can neither be created nor destroyed, it can only be transformed from <a href="https://interviewquestions.tuteehub.com/tag/one-585732" style="font-weight:bold;" target="_blank" title="Click to know more about ONE">ONE</a> form to another. The <a href="https://interviewquestions.tuteehub.com/tag/total-711110" style="font-weight:bold;" target="_blank" title="Click to know more about TOTAL">TOTAL</a> energy before and after <a href="https://interviewquestions.tuteehub.com/tag/transformation-17674" style="font-weight:bold;" target="_blank" title="Click to know more about TRANSFORMATION">TRANSFORMATION</a> remains the same. </strong></p><p><strong>A body of mass'm is raised to height b. At A its potential energy is maximum and kinetic energy is 0 as it is <a href="https://interviewquestions.tuteehub.com/tag/stationary-633001" style="font-weight:bold;" target="_blank" title="Click to know more about STATIONARY">STATIONARY</a>. </strong></p><p><strong>When body is allowed to free fall and it reaches at B, h is decreasing hence potential energy decreases and V is increasing hence kinetic energy is increasing. </strong></p><p><strong>When the body is about to reach the ground level, h = 0, v will be maximum hence kinetic energy > potential energy </strong></p><p><strong>∴ Decrease in potential energy = Increase in kinetic energy </strong></p><p><strong>This shows the continual transformation of gravitational potential energy into kinetic energy. Potential energy + Kinetic energy = Constant (<a href="https://interviewquestions.tuteehub.com/tag/mechanical-2780" style="font-weight:bold;" target="_blank" title="Click to know more about MECHANICAL">MECHANICAL</a> energy) </strong></p><p><strong></strong></p></body></html> | |