A constant force of 3 N acts for 2 s. What is the impulse?

A) 3 N·s

B) 9 N·s

C) 12 N·s

D) 6 N·s

Answer: D

Explanation: Use impulse = force × time for the stated idealized conditions. Substitution gives 3 × 2 = 6 N·s.

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