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प्रश्न
A ball is placed on a compressed spring. When the spring is released, the ball is observed to fly away.
(i) What form of energy does the compressed spring possess?
(ii) Why does the ball fly away?
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उत्तर
(i) Compressed spring possesses potential energy.
(ii) Potential energy of the spring is imparted to the ball in the form of kinetic energy.
संबंधित प्रश्न
The figure shows a uniform metre rule placed on a fulcrum at its mid-point O and having a weight 40 gf at the 10 cm mark and a weight of 20 gf at the 90 cm mark.
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- How can the rule be brought in equilibrium by using an additional weight of 40 gf?

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