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Question
Which of the following factors affects fluid friction? [1 mark]
(a) Speed of the object
(b) Nature of the fluid
(c) Shape of the object
(d) All of theses
(a) Speed of the object
(b) Nature of the fluid
(c) Shape of the object
(d) All of theses
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Solution
Option (d) All of these (0.5 marks)
Fluid friction increases with increase in relative speed of the object moving through the fluid.
The friction offered by a fluid is dependent upon its nature. Denser the fluid, more friction it will offer.
Friction also depends on the shape of the object moving through fluid. Aeroplanes, submarines, racing cars, bullet trains, etc. are designed to have a streamlined structures so that they experience minimum drag from the fluid through which they are moving.
Fluid friction increases with increase in relative speed of the object moving through the fluid.
The friction offered by a fluid is dependent upon its nature. Denser the fluid, more friction it will offer.
Friction also depends on the shape of the object moving through fluid. Aeroplanes, submarines, racing cars, bullet trains, etc. are designed to have a streamlined structures so that they experience minimum drag from the fluid through which they are moving.
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