How is load weight calculated when lifting an object?

The correct method to calculate load weight when lifting an object involves the relationship between weight, volume, and density. Specifically, weight is determined by multiplying the volume of the object by its density.

In this context, density is defined as mass per unit volume, typically expressed in units such as pounds per cubic foot or kilograms per cubic meter. When you know both the density of the material and the volume that the object occupies, you can easily calculate the weight. For example, if you have a solid object with a known volume and density, you simply multiply the two to find the total weight; this is critical for ensuring safe lifting operations and preventing overloads on cranes and hoisting equipment.

The other options do not represent the correct relationships for calculating weight. Using addition or division in the other answers does not reflect the direct physical relationship that exists between weight, density, and volume when dealing with materials and loads.