Một vật có khối lượng 30(kg) đặt trên sàn
buồng thang máy. Cho g = 9,8(m/s2
). Tính lực nén...
Một vật có khối lượng 30(kg) đặt trên sàn
buồng thang máy. Cho g = 9,8(m/s2
). Tính lực nén của vật lên sàn trong các trường
hợp sau:
a) Thang máy lên đều.
b) Thang máy bắt đầu đi lên với gia tốc 0,5(m/s2
).
c) Thang máy bắt đầu hạ xuống với gia tốc 0,5(m/s2
).
d) Thang máy rơi tự do.
Answers: 2
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