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A boat having a length of 3 m and breadt...

A boat having a length of 3 m and breadth of 2 m is floating on a lake. The boat sinks by 1 cm when a man gets on it. The mass of the mas is:

A

60 kg

B

62 kg

C

72 kg

D

128 kg

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The correct Answer is:
A
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ALLEN-ELASTICITY, SURFACE TENSION AND FLUID MECHANICS-Exercise 1 (Fluid Statics)
  1. When a large bubble rises from the bottom of a lake to the surface its...

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  2. A body floats in a liquid contained in a beaker. The whole system as s...

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  3. A boat having a length of 3 m and breadth of 2 m is floating on a lake...

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  4. A body of volume 100 c.c. is immersed completely in waer contained in ...

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  5. The total weight of a piece of wood is 6 kg in the floating state in w...

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  6. A sample of metal weights 210 grams in air 180 grams n water and 120 g...

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  7. An object of volume V is submerged in a liquid of density rho. It has ...

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  8. There are three different liquids, with densities rho(1),rho(2) and rh...

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  9. A wooden cube first floats inside water when a 200 g mass is placed on...

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  10. A piece of ice having a stone frozen in it floats in a glass vessel fi...

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  11. A rectangular block is 5 cm x 5 cm x 10 cm in size. The block floatin...

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  12. A wooden block of volume 1000cm^(3) is suspended from a spring balance...

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  13. A boat carrying a large number of stones is floating in a water tank. ...

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  14. An object of weight W has a uniform rectangular cross section of a x2a...

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  15. Streamline motion is that motion in which there is-

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  16. An aeroplane of mass 3xx10^(4)kg and total wing area of 120 m^(2) is i...

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  17. One end of a horizontal pipe is closed with the help of a velve and th...

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  18. Water is flowing through a channel that is 12 m wide with a speed of 0...

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  19. A U-tube of small and uniform cross section contains water of total le...

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  20. 16cm^(3) of water flows per second through a capillary tube of radius ...

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