Explain why objects moving in fluids must have special shapes.
ScienceClass 8CBSEAnswered 27 Mar 2026
Answer
Soln:
When a body moves through a fluid, it experiences an opposing force which tries to oppose its motion through the fluid. This opposing force is known as the drag force, and the frictional force depends on the shape of the body. By giving the objects a special shape, the force of friction acting on it can be minimised. Hence, it becomes easier for a body to move through the fluid.
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