JEE Main Physics question
On a two-lane road, car is travelling with a speed of 36 km h. Two cars and approach car in opposite directions with a speed of 54 km h each ( catching up to from behind, approaching from ahead). At a certain instant, when the distance is equal to , both being 1 km, decides to overtake before does. What minimum acceleration of car (in ms) is required to avoid an accident?
Answer: 1 ms$^{-2}$
Solution
, , ms (taking 's direction positive). Time for to reach : relative speed ms, gap m,
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