4. A stone is thrown vertically upwards, from the edge of a 5 m tall cliff...

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4. A stone is thrown vertically upwards, from the edge of a 5 m tall cliff with an initial velocity of 12 m/s. With what velocity does the stone hit the ground? Assume acceleration due to gravity is -9.8 m/s? . Round to the nearest tenth. (3) 5. Find the critical numbers, and the intervals of increase/decrease for y= ln (4 – x²) (3) 4. A stone is thrown vertically upwards, from the edge of a 5 m tall cliff with an initial velocity of 12 m/s. With what velocity does the stone hit the ground? Assume acceleration due to gravity is -9.8 m/s? . Round to the nearest tenth. (3) 5. Find the critical numbers, and the intervals of increase/decrease for y= ln (4 – x²) (3)