Question

Help me with this:)
an object is in the air and the weight is 15 N.
If the object is hung with a string and then put into the water until submerged, then the string tension is 10.8 N.
Determine the volume of the object and the mass density of the object?

Answer 1

2 words

archimedes principle :D

Answer 2

still dont get it all :(

Answer 3

@thomaster

Answer 4

@chmvijay Please helpp

Answer 5

the law that a body immersed in a fluid is buoyed up by a force (buoyant force) equal to the weight of the fluid displaced by the body.
Principle of buoyancy which explains that when an object is immersed in a fluid, it appears to become lighter because there is an upward buoyant force exerted on the object. The buoyant force is equal to the mass of water displaced by the object. The object will float if the buoyant force exceeds the mass of the object, and sink if the mass exceeds the buoyant force.

Answer 6

but the matter is that I just have weight and tension of the string. So How?

Answer 7

If u hung the mass with the string outside water, what would be the tension of the string..?