(1)将滑块从斜面上离b点处由静止释放,求滑块滑到圆弧面上c点时对轨道的压力大小;
(2)将滑块从斜面上离b点处由静止释放,求滑块在传送带上运动的时间;
(3)当d点离水平地面的高度时,将滑块从斜面上离b点x处由静止释放,滑块从d点抛出,抛出后的水平距离为L,求L与x的关系。
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