Acylinder is submerged in water as illustrated in the diagram. if the area of the top and the bottom of the cylinder is the same, which of the following statements is true?
a) buoyant force = (force b - force c)
b) buoyant force = (force d - force a)
c) buoyant force = (force b - force a)
d) buoyant force = (force c - force b)
(tap the picture to see the whole thing)

The correct answer is option B.

Explanation:

Buoyant forces : It is an upthrust or an upward force exerted by the fluids on the weight of an object immersed in it.It always act opposite and perpendicular to the weight of the object.

This force is always larger on the bottom of an object than the force on top of an object.

In the given diagram. force A is pushing object downwards and force D is pushing the object upwards.

D > A (force at bottom> force at top)

So, the buoyant force of the cylinder is given by:

= Force D - Force A.

that tool would be a compass