Question

When a body moves through a fluid, the fuld offers opposition to the motion of the body. From the below factors, select those on which this opposition depends A The nature of the fluid. The very of the body in the Rud The shape of the object D all of the above​

Answer 1

Answer:

If a body moves through a liquid or a gas then the fluid applies a force on the body which is called drag force. Direction of the drag force is always opposite to the motion of the body relative to the fluid. At low speeds of the body, drag frog ( F _(P)) is directly proportional to the speed. <br> F_(D) = kv <br> What K is a proportionally constant and it depends upon the dimension of the body moving in air at relatively high speeds, the drag force applied by air an the body is proportional to v^(2) <br> Where this proportionally constant K can be given by <br> K_(2) rho CA <br> Where rho is the density of air <br> C is another constant givig the drag property of air <br> A is area of cross-section of the body <br> Consider a case an object of mass m is released from a height h and it falls under gravity.

Answer 2

Answer:

The nature of the fluid , The very of the body in the Rud , The shape of the object D

all of the above is the answer

Explanation:

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