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29 December, 02:36

Ted throws an object straight up into the air with an initial velocity of 54 ft/s from a platform that is 40 ft above the ground. Use the formula h (t) = - 16t2+v0t+h0, where v0 is the initial velocity and h0 is the initial height. How long will it take for the object to hit the ground?

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  1. 29 December, 04:01
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    Let h (t) = 0.

    Let V_0 = 54.

    Let h_0 = 40.

    Plug into formula and solve for t.

    0 = - 16t^2 + 40t + 54

    Take it from here. This is a quadratic equation.
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