Someone stands on the balcony of a building and throws a small ball vertically upwards, and the maxi

Updated on Balcony 2024-07-06
1 answers
  1. Anonymous users2024-01-24

    The object rises 5m and descends 15m to reach below the throwing point, the distance s=5+15m=20m The distance from the initial position to the last position is 10m, and the direction is vertically downward, so the displacement x=-10m is correct, and A, C, and D are wrong

    Therefore, B

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