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Calculate the linear momentum of a body of mass 4 kg moving with a velocity of 5 m s⁻¹.
A9 kg m s⁻¹
B0.8 kg m s⁻¹
C45 kg m s⁻¹
D20 kg m s⁻¹
Answer & Solution
Correct answer: D. 20 kg m s⁻¹
1. Momentum p = m x v.
2. Substitute: p = 4 x 5.
3. p = 20 kg m s⁻¹.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 1 "Laws of Motion", p.9_
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