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physics

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A sky diver, with parachute unopened, falls 625 m in 15.0 s. Then she opens her parachute and falls another 348 m in 146 s. What is her average velocity (both magnitude and direction) for the entire fall?

  • physics - ,

    Well, the direction of the average velocity should be considered down. No cross wind is mentioned, nor is the speed of the airplane when she jumps. (She would have had that horizontal velocity component initially.)

    She falls a total distance of 625 + 338 m in a total time of 15 + 146 s. Do the addition required. The average speed is the ratio of thoue two numbers.

    Then do the division.

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