Use the average acceleration obtained in Activity 1 to determine how far the ball should drop at 0.3 second, 0.5 second, and 0.7 second. Usi

Question

Use the average acceleration obtained in Activity 1 to determine how far the ball should drop at 0.3 second, 0.5 second, and 0.7 second. Using the simplified formula y = 1/2 at2 (because y0 = 0 and v0 = 0), calculate y to one decimal place.

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Nick 4 years 2021-07-21T07:57:55+00:00 1 Answers 139 views 0

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  1. vankhanh
    1
    2021-07-21T07:59:31+00:00
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    Answer:

    0.3 sec : -0.4 m

    0.5 sec: -1.2 m

    0.7 sec: -2.3 m

    Explanation:

    0.3 sec: 1/2(-9.3 m/s^2)(0.3 s)^2 = -0.4 m

    0.5 sec: 1/2(-9.3 m/s^2)(0.5 s)^2 = -1.2 m

    0.7 sec: 1/2(-9.3 m/s^2)(0.7 s)^2 = -2.3 m

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