The mass of the goods lorry is 4000 kg and the mass of goods loaded on it is 20000 kg. If the lorry is moving with a velocity of 2 metre per second what will be its momentum ?
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Given Velocity v = 2 m/s Mass of lorry = 4000 kg Mass of goods on the lorry = 20000 kg Therefore Total mass m on the lorry = 4000 kg + 20000 kg = 24000 kg Momentum p = ? We know that Momentum p = Mass m × Velocity v Therefore p = 24000 kg × 2 m/s Or p = 48000 kg m/s Thus the momentum of the lorry = 48000 kg m/s.
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