Terminal velocity of the big drop formed when identical falling drops coalesce

1. A.
   $(2)^{1/3} V$
2. B.
   $(2)^{3/2} V$
3. C.
   $(2)^{2/3} V$
4. D.
   $(2)^{1/4} V$

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1. A.
   5 cm/s
2. B.
   $5\sqrt{2}$ cm/s
3. C.
   $5\times2^{1/3}$ cm/s
4. D.
   $5\times(4)^{1/3}$ cm/s

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1. A.
   $\dfrac{VR^2}{r^2}$
2. B.
   $\dfrac{Vr^2}{R^2}$
3. C.
   $\dfrac{VR}{r}$
4. D.
   $\dfrac{Vr}{R}$

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1. A.
   $0.5\text{ }m/s$
2. B.
   $1\text{ }m/s$
3. C.
   $1.5\text{ }m/s$
4. D.
   $2.5\text{ }m/s$

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1. A.
   $\dfrac{VR^2}{r^2}$
2. B.
   $\dfrac{2VR}{r}$
3. C.
   $\dfrac{VR}{r}$
4. D.
   $Vr^2/R^2$

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1. A.
   $2n^{2/3}\,cm/s$
2. B.
   $12n^{2/3}\,cm/s$
3. C.
   $4n^{2/3}\,cm/s$
4. D.
   $8n^{2/3}\,cm/s$

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1. A.
   $n^{1/3}$
2. B.
   $n^{2/3}$
3. C.
   $n^2$
4. D.
   $n^3$

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1. A.
   $3$ cm/s
2. B.
   $27$ cm/s
3. C.
   $81$ cm/s
4. D.
   $9$ cm/s

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