An alternate unit to kgms-1 is :
Correct answer: D. Ns
- A. N
- B. Nm2
- C. Nm
- D. Ns
Explanation
"Option A" is "N" whose base unit is kg.ms-2 hence it is incorrect. "Option B" is "Nm2" and in base units, it is kg.ms-2 / m2 which will be kg.m-1s-2 hence it is incorrect. "Option C" is "Nm" and in base units, it is kg.ms-2 / m which will be kg.s-2 hence it is incorrect. "Option D" is "Ns" and in base units, it is kg.ms-2 / s which will be kg.s-1. Hence it is correct.
This question appeared on the HEC Phase I 2017 paper, which you can sit online with every answer explained.
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