2. A 32-N force, parallel to the incline, is required to push a certain crate at constant velocity up a frictionless incline that is 30° above the horizontal. The mass of the crate is:
(A) 3.3 kg
(B) 3.8 kg
(C) 5.7 kg
(D) 6.5 kg
(E) 16 kg.

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統計: A(0), B(0), C(0), D(1), E(0) #3332061

詳解 (共 1 筆)

#6857476
1. 題目解析 題目中提到一個重力為32...
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