Quick Physics No. 2

A streamlined body falls into a liquid. The time (in seconds) of immersion of the body is?

Details and Assumptions

• Specific Gravity of object is 1.5, Specific Gravity of liquid = 9.0

• Height from which the object fell is 20 meters.

• Acceleration due to gravity is $$g= 10 \text{ m/s}^2$$.

• Time of immersion means the time from hitting the surface of the liquid till coming to rest due to influence of buoyant force.

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