Find the final velocity of a car that accelerates at +2 m/s2 for +4m from an initial velocity of +3m/s.

Question

Find the final velocity of a car that accelerates at +2 m/s2 for +4m from an
initial velocity of +3m/s.

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Verity 2 weeks 2021-07-19T16:46:55+00:00 1 Answers 3 views 0

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    2021-07-19T16:48:29+00:00

    Answer:

    Explanation:

    according to third equation of motion

    2as=vf²-vi²

    vf²=2as+vi²

    vf=√2as+vi²

    vf=√2as+vi

    vf=√2*2*4+3

    vf=√16+3

    vf=4+3=7

    so final velocity is 7 m/s

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )