Question

A body A starts from rest with an acceleration a1. After 2 seconds, another body B starts from rest with an acceleration a2 . If they travel equal distances in the 5th second, after the start of A, then the ratio a1 : a2 is equal to

Options :

  1. 5:9

  2. 5 : 7

  3. 9 : 5

  4. 9 : 7

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Answer :

5:9

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