A car with a vertical windsheld moves in a rain storm at a speed of 40km/hr. The rain drops fall vertically with constant speed of 20m/s. The angle at which rain drops strike the windsheild is
A
tan−159
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B
tan−195
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C
tan−132
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D
tan−123
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Solution
The correct option is Atan−159 The horizontal component of falling rain is 40km/hr