Edexcel IAL physics unit 1 Oct 17 Part 3

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Edexcel IAL physics unit 1 Oct 17
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We have Unit 1 Physics IAL exam on 15/05/2018. 1 more day left! Could you post question 19 before that?

silenttreatment
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sir @naturalsciencesolution, you determined in Q17 that as an object accelerates, then velocity increases, therefore CAN WE SAY ACCORDING TO V=S/T the vertical displacement also increases. CAN WE SAY IT LIKE THAT? with reference to that formula?

vikashgangatharan
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At 12:12 why didn't we divide the total time by 2? The total time refers to time of flight isn't it?

sounad