Two ships, V and W, move with constant velocities `2 ms^(-1)` and `4 ms^(-1)` along two mutually perpendicular straight tracks toward the intersection point O. At the moment `t=0`, the ships V & W were located at distances `100 m` and `200 m` respectively from the point O. The distance between them will be shortest at t= ........A. `2bhat(j)`B. `a hat(j)`C. `(a-2b)hat(i)`D. None of these

Two ships, V and W, move with constant velocities `2 ms^(-1)` and `4 m

1.	Two ships, V and W, move with constant velocities `2 ms^(-1)` and `4 ms^(-1)` along two mutually perpendicular straight tracks toward the intersection point O. At the moment `t=0`, the ships V & W were located at distances `100 m` and `200 m` respectively from the point O. The distance between them will be shortest at t= ........A. `2bhat(j)`B. `a hat(j)`C. `(a-2b)hat(i)`D. None of these
Answer» Correct Answer - A For shortest distance `(dl)/(dt)=0 rArr t=50 sec`

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