pookisantoki said:I have been pondering about this for awhile now. If there are rocks on a boat (that's floating in a water) and one by one the rock is thrown onto the water. Does the water level rise or fall from the initial level?
I believe that it will rise but am not 100% sure.
pookisantoki said:loaded ones immerses deeper so Fb is less when the rocks are taken out so the volume would be less...?? thus the water level will decrease??
Buoyant force is the upward force exerted by a fluid on an object immersed in it. It is caused by the difference in pressure between the top and bottom of the object.
Buoyant force can be calculated using Archimedes' principle, which states that the buoyant force is equal to the weight of the fluid displaced by the object. It can also be calculated using the formula Fb = ρVg, where Fb is the buoyant force, ρ is the density of the fluid, V is the volume of the displaced fluid, and g is the acceleration due to gravity.
The buoyant force on an object is affected by the density of the fluid, the volume of the object, and the acceleration due to gravity. It is also affected by the shape of the object and its depth in the fluid.
If the buoyant force on an object is greater than its weight, the object will float. If the buoyant force is less than its weight, the object will sink. This is determined by the density of the object and the fluid it is immersed in. An object with a lower density than the fluid will float, while an object with a higher density will sink.
No, buoyant force cannot be negative. It is always directed upwards, opposing the weight of the object. However, it can be less than the weight of the object, causing it to sink.