Statement I : A fluid flowing out of a small hole in a vessel apply a backward thrust on the vessel.
Statement II : According to equation of continuity, the product of area and velocity remain constant.

Easy

A

If both statement I and statement II are true and statement II is the correct explanation of statement I
B

If both statement I and statement II are true but statement II is not the correct explanation of statement I.
C

If statement I is true but statement II is false
D

If both statement I and statement II are false

Solution

Due to small area of cross-section of the hole, fluid flows out of the vessel with a large speed and thus the fluid possesses a large linear momentum. As no external forces acts on the system, in order to conserve linear momentum, the vessel acquires a velocity in backward direction or in other words a backward thrust results on the vessel.

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