-1. A block is displaced from equilibrium position by 10 cm and released. The maximum acceleration of the block is ( ) A. 10 ms-2 B. 100 ms-2 C. 200 ms-2 D. 0.1 ms-2 相关知识点: 试题来源: 解析 A 反馈 收藏
Suppose a spring has mass m and spring constant k and let ω =√ (). Suppose that the damping constant is so small that the damping force is negligible. If an external force F(t)=F_0cosω_0 t is applied, where ω _0≠q ω , use the method of undetermined coefficients to show ...
题目【题目】A 10 kg metal block is attached to a spring ofspring constant 1000 Nm-1. A block is displacedfrom equilibrium position by 1o cm and released. T he maimum acceleration of the block is)A. 10ms^(-2)B. 100ms^(-2)C. 200ms^(-2)D. 0.1ms^(-2) 相关知识点: ...
A spring has a spring constant of 50 N/m. How much force is needed to stretch the spring by 2 meters? A. 100 N B. 80 N C. 120 N D. 150 N 相关知识点: 试题来源: 解析 A。解析:Force = spring constant×displacement. 50 N/m×2 m = 100 N. Option B, C and D are ...
A spring has a spring constant of 50 N/m. How much force is required to stretch the spring by 2 m? A. 100 N B. 110 N C. 120 N D. 130 N 相关知识点: 试题来源: 解析 A。Force = Spring constant×displacement = 50×2 = 100 N. Option B, C and D are incorrect....
在弹性系数(spring constant)k中,都有什么会影响弹簧的k值呢? 主要有三个因素: 材料、横截面积和原始长度, 其中原始长度越短,k值越大;横截面积越大,k值越大。K值是和整个弹簧的材料和形状都相关的。 在A-level数学的mechanics部分中,其实还有一个和弹性相关的物理量,叫做弹性模量(Elastic Modulus)λ。
A block whose mass m is 680 g is fastened to a spring whose spring constant k is 65 N/m. The block is pulled a distance x = 11 cm from its equilibrium position at x = 0 on a fric-tionless surface and released from rest at r = 0.(a)What are the angular frequency, the freque...
【题目】A mass of 2 units is in equilibrium suspended from a spring with a springconstant of k = 18. The mass is pulled down 0.5 unit and released. Find theperiod,frequency, and amplitude of the resuting simple harmonic motion.Write the equation of the motion, and graph two cycles of ...
A spring has a spring stiffness constantkof95.0Nm. Part A How much must this spring be compressed to store35.0Jof potential energy? Express your answer to three significant figures and include the appropriate units. There are 2 steps to...
9. A spring of initial length 10.0 cm and spring constant 20 N m' is stretched slowly at a constant speed. Find the work done on the spring when the length of the spring is extended from 12.5 cm to 18.0 cm. C A. 0.0578 J B.(0.0303 J C.0.550 J D.0.116J 相关知识点: 试题来...