rain driven by the wind falls on a railway compartment with a velocity of 20 m/s at an angle of 30° to the vertical the train moves along the direction of wind flow at a speed of 108 km per hour determine the apparent velocity of rain for a person sitting in the train
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Answer:
rain driven by the wind falls on a railway compartment with a velocity of 20 m/s at an angle of 30° to the vertical the train moves along the direction of wind flow at a speed of 108 km per hour .
Explanation:
It must be done according to Parallelogram law of Vector addition.
It will be R=√202+(-30)2-2.20.30 cos (90-30)
=> R= √700=10√7 m/s
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