Question
A dog saw a rabbit running away from it at 5 m/s and
immediately started chasing it at 9 m/s. If the rabbit was 80 metres ahead when the dog started chasing, find the time taken by the dog to catch the rabbit.Solution
Relative speed of dog w.r.t rabbit = 9 β 5 = 4 m/s
So, required time = 80 Γ· 4 = 20 seconds
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