Question

A body is held immersed in a liquid.

(i) Name the two forces acting on body.

(ii) State how do the magnitudes of two forces mentioned in part (i) determine whether the body will float or sink in liquid when it is released.

(iii) What is the net force on body if it (a) sinks, (b) floats ?​

Answer 1

Answer:

1. Two forces acting on the body in a liquid

• Weight of the body (Downwards)
• Boyant force (upthrust of the liquid

2. If the weight of the body is greater than the upthrust acting on it, the body wil sink.

If the weight of the body is equal or lesser than the upthrust acting on it, the body will float.

3. (a) The net force acting on the body when it sinks is body's own weight.

(b) The net force acting on the body when it floats is the upthrust due to the liquid.

Answer 2

1. weight of the body and upthrust of the liquid

2. for this one see the attachment ↑

3. the net force acting on the body when it sinks is body's own weight.

the net force acting on the body when it floats is the upthrust due to the liquid.

thank you very much for giving thanks

have a great day ahead...(◕ᴗ◕✿)