Question

The SI unit of impulse is

• A. N
• B. N-s
• C. N-m
• D. N/m

Answer 1

The correct option is B N-s

Impulse (J) =
Applied force $\left(F\right)\times time\left(t\right)$
Since the SI units of force (F) and time (t) are N and s respectively, the SI unit of Impulse is Newton-second (N-s). Hence, the correct answer is option (2).