Streamline and Turbulent Flow :: Discussion


3.A steel ball is dropped in oil, then?
A.The ball attains constant velocity after sometime
B.The ball stops
C.The speed of ball will keep on increasing
D. The speed of the ball will decrease
Answer:  Option  A
Explanation:

The ball attains constant velocity after falling through some distance in oil when the weight of ball gets balanced by upthrust and the upward viscous force.

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Published by:Michael Daani

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