To keep the bottle completely immersed, the upward force on the bottle due to water must be balanced by an externally applied downward force.
Tiwari Academy Discussion Latest Questions
We have learned that the weight of an object is the force due to the gravitational attraction of the Earth.
When the upward force exerted by the water is greater than the bottle’s weight, the bottle rises up when released.
The water exerts an upward force on the bottle.
The bottle is pulled downwards because of the gravitational force acting on it.
The force due to the gravitational attraction of the Earth acts on the bottle in the downward direction.
The concept of buoyancy helps explain why objects float or sink in a fluid.
A sheet of iron and steel sinks because it displaces a small volume of water, resulting in insufficient buoyant force to support its weight.
A ship doesn’t sink because its shape allows it to displace a large volume of water, creating enough buoyant force to support its weight.
The bucket feels heavier out of the water because it is no longer supported by the buoyant force, and you feel its full weight.