Airplanes A and B are flying with c...
Question
Airplanes A and B are flying with constant velocity in the same vertical plane at angles 30° and 60° with respect to the horizontal respectively as shown in figure.
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Airplanes A and B are flying with constant velocity in the same vertical plane at angles ( 30^{circ} ) and ( 60^{circ} ) with respect to the horizontal respectively as shown in figure. The speed of A is ( 100 sqrt{3} mathrm{ms}^{-1} ). At time ( mathrm{t}=0 mathrm{s} ), an observer in A finds ( B ) at a distance of ( 500 mathrm{m} ). This observer sees ( B ) moving with a constant velocity perpendicular to the line of motion of A. If at ( t=t_{0}, ) A just escapes being hit by ( B, t_{0} ) in seconds is.

JEE/Engineering Exams
Physics
Solution
461
Rating
2.0 (2 ratings)
Airplanes A and B are flying with constant velocity in the same vertical plane at angles 30° and 60° with respect to the horizontal respectively as shown in figure. The speed of A is 100√3
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( tan 30^{circ}=frac{d}{v_{A} t_{0}} ) 

( Rightarrow frac{1}{sqrt{3}}=frac{500}{100 sqrt{3 t_{0}}} quad t_{0}=5 s )

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