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What is the SI unit of linear momentum?
Akg m s⁻¹
Bkg m s⁻²
Ckg m² s⁻¹
Dg cm s⁻¹
Answer & Solution
Correct answer: A. kg m s⁻¹
1. Momentum p = mass x velocity.
2. SI unit of mass is kg and of velocity is m s⁻¹.
3. So the SI unit of momentum is kg x m s⁻¹ = kg m s⁻¹ (g cm s⁻¹ is the CGS unit).
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 1 "Laws of Motion", p.9_
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