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Posted by on Tuesday, March 8, 2011 at 4:13pm.

An object is dropped from a platform 400 ft high. Ignoring wind resistance, how long will it take to reach the ground?

  • physics - , Tuesday, March 8, 2011 at 7:17pm

    y = Vi(t) + 1/2(a)(t^2)

    400 = (0m/s)t + 1/2(9.8)(t^2)

    use the quadratic equation to solve for t

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