Displacement at which the speed is a given fraction of the maximum speed

1. A.
   $\sqrt{3}\,\text{cm}$
2. B.
   $6\,\text{cm}$
3. C.
   $2\sqrt{3}\,\text{cm}$
4. D.
   $2\sqrt{6}\,\text{cm}$

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1. A.
   $\frac{\sqrt{3}A}{2}$
2. B.
   $\frac{2A}{3}$
3. C.
   $\frac{2\sqrt{2}}{3}A$
4. D.
   $\frac{\sqrt{2}}{3}A$

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1. A.
   $\frac{2a}{\sqrt{3}}$
2. B.
   $\frac{\sqrt{2}a}{3}$
3. C.
   $\frac{3a}{\sqrt{2}}$
4. D.
   $\frac{\sqrt{3}a}{2}$

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1. A.
   $\dfrac{A}{\sqrt{15}}$
2. B.
   $\dfrac{A}{4}$
3. C.
   $\dfrac{4A}{\sqrt{15}}$
4. D.
   $\dfrac{A\sqrt{15}}{4}$

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