A.在伞离开陈丽君的手后,如果速度越大,那么惯性越大,飞得更远 |
B.抛出伞后,陈丽君受到的重力和地面给陈丽君的支持力是一对平衡力 |
C.在伞离开陈丽君的手后,手与伞之间力的作用是相互的 |
D.伞被倾斜向上抛到最高点时,若一切外力同时消失,伞将保持静止状态 |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2