Question

A sand core used to form the internal surfaces of a brass casting experiences a buoyancy force of 14 kg. The volume of the mold cavity forming the outside surface of the casting = 4500 cm3. What is the weight of the final casting? Ignore considerations of shrinkage.

(Sand density = 1.6 g/cm3, brass casting density = 8.62 g/cm3).

Answer 1

The answer is the weight of casting is 21.55 kg, and when added by a multiplier by g we have 211.88 N

Step-by-step explanation:

Solution

Given that:

The a buoyancy force is = 14 kg

The volume forming the outside surface of the casting of the mold cavity = 4500 cm^3

The sand density = 1.6 g/cm^3

The brass casting density = 8.62 g/cm^3

Now,

The buoyant force = weight of molten metal brass displaced - weight of sand core

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