Question

The figure shows an object of mass 0.4 kg that is suspended from a scale and submerged in a liquid. If the reading on the scale is 3 N, then the buoyant force that the fluid exerts on the object is most nearly 

(A) 1.3 N 

(B) 1.0N 

(C) 0.75 N 

(D) 0.33 N 

(E) 0.25 N

Answer 1

Correct option (B) 1.0N

The weight of the mass is 4N. The scale reading apparent weight is 3N so there must be a 1N buoyant force acting to produce this result.