Scientific Skills & Tools (id: 19467c37d)

本题目来源于试卷: Scientific Skills & Tools，类别为 IB物理学

[单选题]

A student models the relationship between velocity v of a moving charge in a magnetic field, and the force F acting on it as F = kv, with k being a constant

What are the units for k expressed in fundamental SI units?

A. $m\:s$
B. $kg\:s^{-1}$
C. $kg\:s^{-2}$
D. $m\:s^{-2}$


参考答案:  B


本题详细解析:
The units for $k$ must be the unit of force divided by the unit of velocity, ($\dfrac{kg \,m \,s^{-2} }{ m \,s^{-1}}$ ) therefore $kg \,s^{-1}$

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