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एक गेंद को 10 मीटर की ऊँचाई से गिराया जाता है। यदि फर्श पर टकराने के बाद गेंद की ऊर्जा में `30%` की कमी हो जाती है, तो गेंद फर्श से वापस लौटने पर कितन

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एक गेंद को 10 मीटर की ऊँचाई से गिराया जाता है। यदि फर्श पर टकराने के बाद गेंद की ऊर्जा में `30%` की कमी हो जाती है, तो गेंद फर्श से वापस लौटने पर कितनी ऊँचाई तक जाएगी ?
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Correct Answer - 7.0 मीटर |
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