A particle is moving in a straight line such that its velocity is increasing at 5 m s - 1 per meter. The acceleration of the particle is _____ m s - 2 at a point where its velocity is 20 m s - 1 .

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According to the question, velocity is increasing at 5 m s - 1 . Therefore, d v d s = 5 s - 1 . Now acceleration a = d v d t = v d v d s ⇒ a = v d v d s = 20 × 5 = 100 m s - 2

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