You throw a small rock straight up from the edge of a

Chapter 2, Problem 2.49

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QUESTION:

You throw a small rock straight up from the edge of a highway bridge that crosses a river. The rock passes you on its way down, 6.00 s after it was thrown. What is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? Ignore air resistance

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QUESTION:

You throw a small rock straight up from the edge of a highway bridge that crosses a river. The rock passes you on its way down, 6.00 s after it was thrown. What is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? Ignore air resistance

ANSWER:

Step 1 of 3

Given data:

Distance between water and bridge .

Time flight of the rock when it is thrown straight up to return back to bridge .

Schematic diagram:

The time of ascent of the rock is given as,

Substituting all known values,

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