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13 May, 19:28

A 2 meter tall astronaut standing on mars drops her glasses from her nose. how long will the astronaut have before he hits the ground?

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  1. 13 May, 21:55
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    Here,

    Height (S) = 2m

    Gravity on mars (g) = 3.7m/s^2

    Initial velocity (u) = 0 m/s^2

    By the one of the formula of the motion,

    S = ut + 1/2at^2

    2 = 0 * t + 1/2*3.7*t^2

    2 = 1.85t^2

    t^2 = 2/1.85 = 1.081

    t = 1.03s

    So, it will take 1.03s long ...
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