: Một thang máy chuyển động lên cao với gia tốc không đổi 2 m/s2
. Lúc thang máy có tốc độ 2,4
m/s thì từ trần thang máy có một vật rơi xuống. Trần thang máy cách sàn h = 2,55 m. Lấy g = 10 m/s2
.
Thời gian rơi của vật là
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Ответ:
200metters
Explanation:
because in one second hes going 10 metter in 20 second he will go 20×10=200