MPSC Rajyaseva 2022 CSAT — Question 13
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एका बंदुकीचे वस्तुमान 6 kg असून त्यातून गोळी झाडल्यानंतर बंदूक 170 cm/s वेगाने प्रतिकेक्षिपत होते, तर बंदुकीचा संवेग काढो : The mass of a gun is 6 kg and it recoils with a speed 170 cm/s. What is the momentum of the gun ?
1)10.2 kg m/s✓ Correct
2)1.02 kg m/s
3)1020 kg m/s
4)102 kg m/s
Momentum = mass × velocity. Mass of gun = 6 kg, recoil velocity = 170 cm/s = 1.7 m/s. Momentum = 6 × 1.7 = 10.2 kg m/s or in cgs units 6000 g × 170 cm/s = 1020000 g cm/s.