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Example 14 A toy rocket of mass 0 1 kg has a small fuel of...

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Example 14 A toy rocket of mass 0 1 kg has a small fuel of mass 0 02 kg which it burns out in 3 s Starting from rest on a horizontal smooth track it gets a speed of 20 ms after the fuel is burnt out What is the approximate thrust of the rocket What is the energy content per unit mass of the fuel Ignore the small mass variation of the rocket during fuel burning NCERT

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