Concept explainers
The speed of snowflakes relative to car and relative to the ground..
Answer to Problem 38P
The speed of rain relative to the ground is 14.43m/s.
The speed of rain relative to the car is 28.87m/s.
Explanation of Solution
Given Data:
Car is going south on the highway at 25m/s in the snowstorm.
Snow was coming down vertically but passing the window of the moving car at an angle of 30o.
Calculation:
The velocity diagram is drawn as:
Where,
From the figure:
Hence, the speed of the rain relative to the ground is 14.43m/s vertically downward.
From the figure:
Therefore, the rain relative to the car will be 28.87m.s at 30-degree to the horizontal.
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Physics: Principles with Applications
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