Difficulty: Easy
Correct Answer: Yes
Explanation:
Introduction / Context:
SI base and derived units are core to engineering problem solving. The newton (N) is the SI unit of force, defined via Newton’s second law.
Given Data / Assumptions:
Concept / Approach:
Newton’s second law states F = m * a. Setting m = 1 kg and a = 1 m/s^2 gives F = 1 N by definition.
Step-by-Step Solution:
Use F = m a. Let m = 1 kg, a = 1 m/s^2. Then F = 1 kg * 1 m/s^2 = 1 N.
Verification / Alternative check:
Dimensional analysis: [N] = kg·m/s^2.
Why Other Options Are Wrong:
'No': contradicts the SI definition. 'Only in cgs': cgs uses dyne, not newton. Rotational motion: torque unit is N·m, not N; definition remains linear and exact.
Common Pitfalls:
Mixing SI and cgs units; always keep consistency.
Final Answer:
Yes
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