Question

[Big City Boy]

Chọn câu sai: 

A. \(W_t=mgz\)

B. \(W_t=mg.\left(z_2-z_1\right)\)

C. \(A_{12}=mg.\left(z_1-z_2\right)\)

D. \(W_t=mgh\)

Answer 1

[HT.Phong (9A5)]

Chọn câu sai:

A. \(W_t=m.g.z\)

B. \(W_t=m.g.\left(z_2-z_1\right)\)

C. \(A_{12}=m.g.\left(z_1-z_2\right)\)

D. \(W_t=mgh\)