Question

A buoy is held inside water contained in a vessel by tying it with a thread to the base of the vessel. Name the three forces that keep the buoy in equilibrium and state the direction in which each force acts.

Answer 1

Forces acting on the body are listed below:

1. Weight of the body - Vertically downwards.
2. Upthrust of water on body - Vertically upwards.
3. Tension in the thread - Vertically downwards.