how to calculate mass in physics
Mass is usually in kiograms.
1. Given: Wt. = 98 N.
Calculate the mass.
ven: ven
mg = 98.
m = 98/g = 98 / 9.8 = 10 kg.
2. Given: F = 100 N., a = 5 m/s^2.
Find the mass.
F = ma.
m = F/a = 100 / 5 = 20kg.
m
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To calculate mass in physics, you need to have two pieces of information: the density of the object and its volume. The formula to calculate mass is:
Mass = Density x Volume
1. Determine the density of the object: Density is the measure of how much matter is packed into a given volume. It is usually represented by the Greek letter rho (ρ) and is measured in kilograms per cubic meter (kg/m³). The density of an object can be found in a reference book or online, or it may be provided in the problem you are trying to solve.
2. Measure or find the volume of the object: Volume is the amount of space occupied by an object. The unit of measurement for volume depends on the shape of the object. Common units include cubic meters (m³) for regular shapes, such as cubes or rectangular prisms, and liters (L) for irregular shapes. You can measure the volume directly (e.g., using a ruler or measuring cup) or calculate it based on the dimensions of the object. The formula for volume varies depending on the shape of the object.
3. Multiply the density by the volume: Once you have the density and volume, multiply them together to calculate the mass. Make sure the units are compatible. For example, if the density is given in kilograms per cubic meter and the volume is in cubic meters, the resulting mass will be in kilograms.
Let's say you have an object with a density of 2,000 kg/m³ and a volume of 0.5 m³. The calculation would be:
Mass = 2,000 kg/m³ x 0.5 m³
Mass = 1,000 kg
So, the mass of the object in this example is 1,000 kilograms.