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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Two particles, 1 and 2 move with constant velocities v 1 ​ and v 2 ​ along two mutually perpendicular straight lines towards the intersection point O. At the moment t=0 the particles were located at the distance l 1 ​ and l 2 ​ from the point O. How soon will the distance between the particles become the smallest? What is it equal to?

Two particles, 1 and 2 move with constant velocities v 1 ​ and v 2 ​ along two mutually perpendicular straight lines towards the intersection point O. At the moment t=0 the particles were located at the distance l 1 ​ and l 2 ​ from the point O. How soon will the distance between the particles become the smallest? What is it equal to?

A police jeep approaching a right-angled intersection from the north is chasing a speeding car that has turned the corner and is now moving straight east. When the jeep is 0.6km north of the intersection and the car is 0.8km to the east the police determine with radar that the distance between them and the car is increasing at 20kmh^-1. If the jeep is moving at 60kmh^-1 at the instant of measurement Two particles what is the speed of the car?