Question

6. When a ship goes from sea water to river water, it displaces
(a) more water to change the upthrust on it
(b) less water to change the upthrust on it
(c) more water to increase the stability
(d) equal water​

Answer 1

Answer:

a) more water to change the upthurst on it.

Explanation:

It is because sea water is denser than river water, so the ship is likely to sink in river water with equal water as sea one. It has to displace more water to float.

Since buoyant force = weight of liquid displaced, and density of salt water > density of fresh water, a smaller volume of salt water is displaced. Ship floats higher in salt water than in fresh water. Ship has to displace a greater volume of freshwater to float.

I hope it will help you...

Answer 2

Answer:

when a ship goes from sea water to river water