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2 April, 04:08

What is the marble's range if it is fired horizontally from 1.6 m above the ground?

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  1. 2 April, 04:37
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    The answer is 6.40 meters.

    Explanation:

    The speed v = √ (2gh)

    v = √ (2*9.8*6.4) = 11.2 m/s

    After, finding the time it takes to hit the ground from a height of 1.6 meters.

    time = √ (2H:g)

    time = √ (2*1.6:9.8)

    time = 0.5714 seconds.

    Horizontal distance is speed * time = 11.2 * 0.5714 = 6.40 meters.
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