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19 October, 03:54

A clarinetist, setting out for a performance, grabs his 3.230 kg3.230 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 30.10 N. 30.10 N. Find the case's vertical acceleration. Indicate an upward acceleration as positive and a downward one as negative.

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  1. 19 October, 06:16
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    - 0.5 m/s²

    Explanation:

    m = mass of the clarinet case = 3.230 kg

    W = weight of the clarinet case in downward direction

    a = vertical acceleration of the case

    Weight of the clarinet case is given as

    W = mg

    W = 3.230 x 9.8

    W = 31.654 N

    F = Upward force applied = 30.10 N

    Force equation for the motion of the case is given as

    F - W = ma

    30.10 - 31.654 = 3.230 a

    a = - 0.5 m/s²
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