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help The equation for free fall at the surface of Planet X is s = 7 791 m with t in seconds Assume a rock

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The equation for free fall at the surface of Planet X is s = 7 791 m with t in seconds Assume a rock is dropped from the top of a 450-m cliff Find the velocity of the rock at t = 2 sec. The velocity of the rock at t = 2 sec is (Type an integer or a decimal. Do not round.)

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