(1)O点和O′点间的距离x1;
(2)弹簧在最低点O′处的弹性势能;
(3)设B的质量为βm,μ = tanθ,v0 = 3。在P点处放置一个弹性挡板,将A与另一个与A材料相同的物块B(可视为质点与弹簧右端不拴接)并排一起,使两根弹簧仍压缩到O′点位置,然后从静止释放,若A离开B后给A外加恒力,沿斜面向上,若A不会与B发生碰撞,求β需满足的条件?
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