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21 August, 08:10

A ball is thrown vertically upward. What are its velocity and acceleration when it reaches its maximum altitude? What is its acceleration just before it hits the ground?

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  1. 21 August, 11:43
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    Velocity at maximum height is zero. Acceleration at maximum height is 9.81 m/s² downward. Acceleration when it just hits the ground is 9.81 m/s² downward.

    Explanation:

    For a ball thrown vertically upward, the velocity at maximum height is zero.

    Acceleration is a constant for a ball thrown vertically upward, its is acceleration due to gravity.

    Acceleration at maximum height is 9.81 m/s² downward.

    Acceleration when it just hits the ground is 9.81 m/s² downward.
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