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26 January, 10:05

An object is dropped from a height of 25 meters. At what velocity will t hit the ground?

A. 7.0

B. 11

C. 22

D. 49

E. 70

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Answers (1)
  1. 26 January, 12:54
    0
    Given data

    height (h) = 25 m,

    velocity (v) = ?

    we know that,

    v²-u² = 2as

    initial velocity (u) = 0,

    a = g = 9.8 m/s,

    Now the equation becomes,

    v² = 2 * g * h

    = 2 * 9.8 * 25

    v² = 490.5

    v = √490.5

    v = 22.1 m/s

    Therefore answer is C, i. e., 22 m/s (If you like this procedure, give me brainiest)
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