force of buoyancy वाक्य

The density contrast manifests as a force of buoyancy.
To find the force of buoyancy acting on the object when in air, using this particular information, this formula applies:
Where F is the total force measured by the force meter, F b is the force of buoyancy due to the solid sample displacing the liquid, I is the wetted length, and sigma is the known surface tension of the liquid.
During the period when animals first evolved to survive on land some method of directed locomotion and thus a form of outer skeleton would have been required to cope with the increase in the force of gravity due to the weakened upward force of buoyancy.