(II) A baseball pitcher throws a baseball with a speed of 43 m????s. Estimate the average acceleration of the ball during the throwing motio

Question

(II) A baseball pitcher throws a baseball with a speed of 43 m????s. Estimate the average acceleration of the ball during the throwing motion. In throwing the baseball, the pitcher accelerates it through a displacement of about 3.5 m, from behind the body to the point where it is released

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Phúc Điền 4 years 2021-08-05T08:41:58+00:00 1 Answers 63 views 0

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  1. Maris
    0
    2021-08-05T08:43:56+00:00
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    Answer:

    a = 264.14 m/s²

    Explanation:

    From the question;

    Initial velocity; u will be 0 m/s since the ball will start from rest.

    Final velocity; v = 43 m/s

    distance covered by the motion; s = 3.5m

    To get the acceleration, we will make use of Newton’s third equation of motion which is;

    v² = u² + 2as

    Making a the subject, we have;

    a = (v² – u²)/2s

    Plugging in the relevant values to give;

    a = (43² – 0)/(2 × 3.5)

    a = 264.14 m/s²

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