descending a 10% grade at a speed of 75 mi/h, David notices a large object in the roadway ahead of Q3. him. Without thinking about any alternatives, David stabs his brakes and begins to slow down with deceleration of 12 ft/s2. Calculate the minimum distance at which George must have seen the object in order to avoid crashing with it. You can assume that the roadway surface is concrete and that the surface is wet. You can also assume that David has a brake reaction time of 1.1 seconds because he is always alert on this stretch of the road

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Q3. While descending a 10% grade at a speed of 75 mi/h, David notices a large object in the roadway ahead of
him. Without thinking about any alternatives, David stabs his brakes and begins to slow down with deceleration
of 12 ft/s2. Calculate the minimum distance at which George must have seen the object in order to avoid
crashing with it. You can assume that the roadway surface is concrete and that the surface is wet. You can also
assume that David has a brake reaction time of 1.1 seconds because he is always alert on this stretch of the road
Transcribed Image Text:Q3. While descending a 10% grade at a speed of 75 mi/h, David notices a large object in the roadway ahead of him. Without thinking about any alternatives, David stabs his brakes and begins to slow down with deceleration of 12 ft/s2. Calculate the minimum distance at which George must have seen the object in order to avoid crashing with it. You can assume that the roadway surface is concrete and that the surface is wet. You can also assume that David has a brake reaction time of 1.1 seconds because he is always alert on this stretch of the road
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