An easy experiment to estimate the density of a body is to weigh it in air and water. Consider a body of unknown density and volume. You weighed it in air, finding a value of 100 N. Then, using a special scale imported from the United States, you weighed the object submerged in water, finding a value of 5.6 lbf. Based on these results, find the density and volume of the object. Remember that the scale measures the result of the balance of forces on the body (or the sum of the forces). Show this balance of forces (or force diagram) on the body during your solving. Express the result in units of the International System and the American System of Engineering, and show any unit conversion calculations using the conversion factor. Consider the densities of water and air equal to 1000 kg/m3 and 1.18 kg/m3, respectively.
An easy experiment to estimate the density of a body is to weigh it in air and water. Consider a body of unknown density and volume. You weighed it in air, finding a value of 100 N. Then, using a special scale imported from the United States, you weighed the object submerged in water, finding a value of 5.6 lbf. Based on these results, find the density and volume of the object. Remember that the scale measures the result of the balance of forces on the body (or the sum of the forces). Show this balance of forces (or force diagram) on the body during your solving. Express the result in units of the International System and the American System of Engineering, and show any unit conversion calculations using the conversion factor. Consider the densities of water and air equal to 1000 kg/m3 and 1.18 kg/m3, respectively.
Step by step
Solved in 5 steps with 7 images
