Why does a block of plastic released under wa | vedclass

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Question

(B) Two forces act on an object immersed in water. One is the gravitational force,which pulls the object downwards. The other is the buoyant force,whi

Vedclass · Accepted Answer

The buoyant force is greater than the gravitational force.

Vedclass · Answer

(B) Two forces act on an object immersed in water. One is the gravitational force,which pulls the object downwards. The other is the buoyant force,which pushes the object upwards. If the upward buoyant force is greater than the downward gravitational force,the object will rise to the surface. Since the density of plastic is less than the density of water,the buoyant force exerted by the water on the plastic block is greater than the gravitational force acting on it. Therefore,the block of plastic rises to the surface when released under water.

Why does a block of plastic released under water come up to the surface of water?

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