One of the following statements is false. Select it. The direction of the force

Question

One of the following statements is false. Select it.

The direction of the force of buoyancy is opposite the direction of the force of gravity.

If an object is immersed in a fluid located in free space (force of gravity is zero), the object experiences no buoyant force.

At steady state, the flow of an ideal fluid is such that the amount of fluid which passes any point per unit time is independent of the cross-sectional area of the conduit.

All other things being equal, the pressure in a fluid is greater wherever the the speed of fluid flow is greater.

Explanation / Answer

If an object is immersed in a fluid located in free space (force of gravity is zero), the object experiences no buoyant force.

Reason : the force of buoyancy is independent of the force of gravity. it depends on the volume of fluid displaced and density of fluid only. hence when the object is completely immersed , the object expriences force of buoyancy

All other things being equal, the pressure in a fluid is greater wherever the the speed of fluid flow is greater.

Reason :

according to bernoulli's theorem

P + p gh + (0.5) p V2 = constant

as the speed increases , the pressure P decreases to keep the sum constant

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