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प्रश्न
On doubling the velocity of a moving body, the quantity which gets doubled is ______.
पर्याय
acceleration
momentum
kinetic energy
weight
MCQ
रिकाम्या जागा भरा
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उत्तर
On doubling the velocity of a moving body, the quantity which gets doubled is momentum.
Explanation:
Momentum is p = mv. On doubling v, momentum doubles. Kinetic energy becomes four times because \[ K \propto v^{2} \], while acceleration and weight remain unchanged.
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