A boy starting from rest is moving with a uniform acceleration of 5 ms^ -2 for 10 s, and after that with a uniform acceleration of 10 ms^ -2 for 15 s, then

JEE Main Physics question

A boy starting from rest is moving with a uniform acceleration of 5 ms for 10 s, and after that with a uniform acceleration of 10 ms for 15 s, then

Answer: (B),(D)

Phase 1: ms, distance m. Phase 2: from , , for 15 s: ms;

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Question ID VK-152142