Advertisements
Advertisements
Question
Draw a diagram to show the forces acting on a body floating in water with its some part submerged. Name the forces and show their points of application. How is the weight of water displaced by the floating body related to the weight of the body itself?
Advertisements
Solution
The forces acting are as listed below:
(i) Weight of the body acting downwards.
(ii) Upthrust due to water acting upwards.
Weight of water displaced by the floating body = Weight of the body
APPEARS IN
RELATED QUESTIONS
State the principle of floatation.
A solid iron ball of mass 500 g is dropped in mercury contained in a beaker. (a) Will the ball float or sink? Give reasons. (b) What will be the apparent weight of the ball?
A piece of ice floating in a glass of water melts, but the level of water in the glass does not change.
Give reasons.
Hint: Ice contracts on melting.
Explain the following :
Icebergs floating in sea are dangerous for ships.
A body of weight W is floating in a liquid. Its apparent weight will be
A test tube loaded with lead shots weighs 25 gf and floats upto the mark X in water. When the test tube is made to float in brine solution, it needs 5 gf more of lead shots to float upto level X. Find the relative density of brine solution.
Name an instrument based on this principle. State two uses of the instrument that you describe.
How does an object’s density determine whether the object will sink or float in water?
State the laws of flotation.
Why do petroleum-based products float on the surface of the water?
