It was reported that a child accidentally fell from a 45m high balcony without initial velocity whil

Updated on Balcony 2024-07-19
1 answers
  1. Anonymous users2024-01-24

    (1) The child's falling process is uniformly accelerated, the falling time is t, and the acceleration is g by the kinematic formula H 12GT

    Get: t 2hg

    10s＝3s

    Managers use at least an average velocity ofv＝s

    t＝183m/s＝6m/s

    A: Managers should run to the bottom of the building at least at an average speed of 6ms

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