Question
Arjun left a bus stop at 14 m/s. Mohan started chasing
him 7 seconds later and overtook him in 28 seconds. What speed was Mohan running at?Solution
ATQ,
Distance covered by Arjun in 7 seconds = 14 × 7 = 98 metres
Relative speed between Mohan and Arjun = 98 ÷ 28 = 3.5 m/s
Mohan must be faster.
So, Mohan’s speed = 14 + 3.5 = 17.5 m/s
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