A 2.0 kg object is moving at a speed of $v=12.0 \mathrm{~m} / \mathrm{s}$. The drag force is $6.0 \mathrm{~N}$. If the drag force is given by the equation $F=b v^{2}$, then the value of $b$ is
A) $4.2 \times 10^{-2} \mathrm{~kg} / \mathrm{m}$.
B) $7.5 \times 10^{-3} \mathrm{Ns}^{2} / \mathrm{m}^{2}$.
C) $4.2 \times 10^{-1} \mathrm{~N} / \mathrm{m}^{2}$.
D) $3.9 \times 10^{-1} \mathrm{~kg} / \mathrm{m}^{2}$.
E) $1.5 \times 10^{-2} \mathrm{Ns} 2 / \mathrm{m}^{2}$

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The Answer of A 2.0 kg object is moving at a speed of $v=12.0 \mathrm{~m} / \mathrm{s}$. The drag force is $6.0 \mathrm{~N}$. If the drag force is given by the equation $F=b v^{2}$, then the value of $b$ is
A) $4.2 \times 10^{-2} \mathrm{~kg} / \mathrm{m}$.
B) $7.5 \times 10^{-3} \mathrm{Ns}^{2} / \mathrm{m}^{2}$.
C) $4.2 \times 10^{-1} \mathrm{~N} / \mathrm{m}^{2}$.
D) $3.9 \times 10^{-1} \mathrm{~kg} / \mathrm{m}^{2}$.
E) $1.5 \times 10^{-2} \mathrm{Ns} 2 / \mathrm{m}^{2}$

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