Question

The object in the figure is made of a material of density 3000 kg / m3. What is the tension in the rope, which suspends the object, when it is completely immersed in water. The mass of the object is 200 kg.​

Answer 1

Answer:

Volume of stone =

densityofstone

massofstone

=

3000kg/m

3

150kg

Volume of stone = 0.05m

3

Buoyant force = V

im

×ϱ×g

= 0.05×1000×10

= 500 N

So force needed to lift stone = 150×10−500

= 1000 N.