A Heavy Ball Is Dropped into a Lake from a Height

question 18

Multiple Choice

A heavy ball is dropped into a lake from a height of 30.0 m above the water.It hits the water with a certain velocity and continues to sink to the bottom of the lake at this same constant velocity.It reaches the bottom of the lake 10.0 s after it was dropped.How deep is the lake?

• A)182.5 m
• B)87.4 m
• C)29.6 m
• D)143.1 m
• E)209.7 m

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