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A piece of cork starts from rest at the ...

A piece of cork starts from rest at the bottom of a lake and floats up. Its velocity v is plotted against time t. Which of the following best represents the resulting curve?

A

B

C

D

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The correct Answer is:
A
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ALLEN -ELASTICITY, SURFACE TENSION AND FLUID MECHANICS-Exercise 2 (One or more than one correct answer)
  1. Water filled in an empty tank of area 10 A through a tap of cross sect...

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  2. Two very wide parallel glass plates are held vertically at a small sep...

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  3. A piece of cork starts from rest at the bottom of a lake and floats up...

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  4. A sealed tank containing a liquid of density rho moves with horizontal...

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  5. The U-tube shown has uniform cross-section A liquid is filled in the t...

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  6. Water coming out of the mouth of a tap and falling vertically in strea...

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  7. There are two identical small holes on the opposite sides of a tank co...

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  8. A U-tube of uniform cross section (see figure) is partially filled wit...

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  9. A homogeneous solid cylinder of length L(LltH/2), cross-sectional area...

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  10. A mercury manometer is connected as shown in the figure. The differenc...

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  11. An open pan P filled with water of density (rhow) is placed on a verti...

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  12. A small ball is left in a viscous liquid form very much height correct...

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  13. A cubical block of side a and density rho slides over a fixed inclined...

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  14. A space 2.5cm wide between two large plane surfaces is filled with oil...

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  15. A large drop of oil whose density is less than that of water, floats ...

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  16. If the terminal speed of a sphere of gold (density =19.5kg//m^3) is 0....

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  17. A spherical ball is dropped in a long column of viscous liquid. Which ...

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  18. A small sphere of mass m is dropped from a aheight After it has fallen...

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  19. The wires A and B shown in Fig. are made of the same material and have...

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  20. When a capillary tube is dipped in a liquid, the liquid rises to a hei...

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