The distance D covered by a falling ball varies as the square of the time take T, calculate the distance when the time taken is 13 seconds and the time taken for a distance of 648m.

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  1. D = kT^2
    when T=13, D = 169k
    when D=648, T = √(648/k)

    Supply the missing info, and you can get numbers.

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  2. as in i need d solution

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