(1)小物体跟传送带间的动摩擦因数;
(2)当小物体在AB轨道上的运动速度低于某一数值时,无论传送带顺时针运动的速度多大,小物体总不能到达轨道CD,求小物块该速度大小;
(3)若小物体以的速度沿轨道AB向右运动,欲使小物体到达轨道CD,传送带至少以多大的速度顺时针运动,小物块刚好到达轨道D点?对应物块与传送带之间的划痕为多长?
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