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| 1. |
Two particles are projected from two points 4m apart on the horizontal ground, simultaneously with speed `20ms^(-1)` above `60^(@)` and `15ms^(-1)` above `30^(@)` from horizontal towards each other. Find the shortest distance between them during the flight.A. 3.9mB. 2.8mC. 1.7mD. 1.5m |
| Answer» Distance `=4 cos (60-53)` | |