Since the weight is a force, its SI unit is the newton. For an object in free fall, so that gravity is the only force acting on it, then the expression for weight follows from Newton's second law. You might well ask, as many do, Why do you multiply the mass times the freefall acceleration of gravity when the mass is sitting at rest on the table?. This video is unavailable. Watch Queue Queue. Watch Queue Queue Weight changes based on location in direct correlation to the measure of gravitational force at the location. Mass does not change with location. To find an object’s mass using its weight, the formula is Mass equals Weight divided by the Acceleration of Gravity (M = W ÷ G). Finding mass from density requires rearranging the density formula, D=M÷V, where D means density, M means mass and V means volume. Rearranged, the equation becomes M=DxV. Fill in the known quantities, density and volume, to solve the equation and find the value of mass. Mass is both a property of a physical body and a measure of its resistance to acceleration (a change in its state of motion) when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies. Density is the mass per unit of volume of a substance. The density equation is: Density = Mass / Volume To solve the equation for Mass, rearrange the equation by multiplying both sides times Volume in order to isolate Mass, then plug in your known values (Density and Volume). Then solve for Mass. Mass = Density x Volume Example The. UNCLAIMED PROPERTY DIVISION. The Unclaimed Property Division is holding over $3 billion in unclaimed funds for the citizens and businesses of the Commonwealth. The Division holds these lost funds until they are claimed by either the original owner or their heirs. Claiming property is fast, easy and free. The ability to determine the mass of a moving body can be useful not only at school physics lessons, but also in everyday life. Suppose you want to raise the excavator vehicle, the weight of which is unknown, wherein a known speed at which the car is raised. Review how to calculate the mass of a liquid from its volume and density. An example calculation is given.