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ICSE Class 10 Answered

A compressed spring has a tennis ball of mass 0.5 kg attached to it. The spring is then released which sends the ball moving on a horizontal surface, with a sped of 2m/s-1. What is the elastic energy of the compressed spring?
Asked by khushdab | 23 Apr, 2020, 02:20: PM
Expert Answer
When the spring is released all the potential energy stored in the compressed spring gets converted to kinetic energy.
By using principle of consvervation of energy,
Total energy = Potential energy + Kinetic energy
Thus,
P.E. = K.E.

Thus, the elastic potential energy when spring was compressed is 1 Joule.
Answered by Shiwani Sawant | 23 Apr, 2020, 07:23: PM

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