Question

The gravitational force exerted on a solid object is 5.10 N. When the object is suspended from a spring scale and submerged in water, the scale reads 2.50 N (figure). Find the density of the object.

Figure (a) shows a vertical spring scale. The top of the scale has a hook attached to the ceiling. The bottom of the scale has a hook attached to a rope. The rope hangs down and is attached to a solid block that hangs from the rope. Figure (b) shows the same scale, but now the block is submerged in a tank of water. The reading on the scale in Figure (b) is less than the reading on the scale in Figure (a).

kg/m³

Answer 1

FBD of the ob tect in water MT=25N ng = solon Bouygut force z 51-2-5= 2.6 N. 5o = Swig = 2.60 € mga s bog = S.lon @ C osog So= 1961.54 kg lms