JEE Main Physics question
A passenger train is running on a railway track with a speed v₁. While driving, the driver discovers that another goods train is travelling in front of the passenger train with a speed v₂ (v₁ > v₂). Its retardation after applying brakes is a. The least distance the passenger train must travel to avoid collision with the goods train is
Answer: (A)
Solution
With actual speeds v₁ (passenger) and v₂ (goods, assumed constant) and retardation a: least
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