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NDA 2019 GAT · General Knowledge · Units and Measurements · easy

The SI unit of impulse is equivalent to

Single correct option

The SI unit of impulse is equivalent to
  1. A. kg m s^-2
  2. B. kg m^2 s^-1
  3. C. kg m s^-1
  4. D. kg m^2 s^-2
Show answer and solution

Answer: (C) kg m s^-1

Impulse equals force times time, so its unit is N s = (kg m s^-2)(s) = kg m s^-1. This is the same as the unit of momentum, which is why impulse equals the change in momentum. The other options are the units of force, angular momentum and energy respectively.
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Original question written in the NDA 2019 GAT pattern and checked twice for the correct answer. Not an official question paper. How we write and check questions · Corrections policy · Report a mistake