A rock is thrown vertically upward at an initial velocity of 70 m/s. What is the approximate acceleration of the rock when it reaches its ma

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A rock is thrown vertically upward at an initial velocity of 70 m/s. What is the approximate acceleration of the rock when it reaches its maximum height (assume upward is the positive y direction)?

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Nguyệt Ánh 4 years 2021-07-28T11:00:29+00:00 1 Answers 11 views 0

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  1. minhkhue
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    2021-07-28T11:02:04+00:00
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    Answer:

    Zero.

    Explanation:

    Given that a rock is thrown vertically upward at an initial velocity of 70 m/s. What is the approximate acceleration of the rock when it reaches its maximum height

    (assume upward is the positive y direction)?

    Since the reached the maximum height, the final velocity V will be equal to zero.

    Using the first equation of motion to find the time.

    And since it is a vertical direction, and not horizontal, the acceleration a will be equal to zero.

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