Periodic and Circular Motion Periodic and Circular Motion Physics Help Forum Feb 10th 2019, 07:54 PM #1 Junior Member   Join Date: Feb 2019 Posts: 1 Harmonic motion with spring moving with constant speed A spring whose constant is $k$ has its left end joined to a mass $m$ while its other end is always moving whith constant speed $u$. The coefficient of kinetic friction between the mass and the horizontal surface is μ and the coefficient of static friction is 2μ. The mass can carry out harmonic movements depending on the initial conditions. Analyze the two following: 1) First, consider that at $t=0$ the force of the spring is exactly equal to the kinetic friction force and the mass moves with speed $v_0 < u$. Find the time period $T_1$ and the amplitude $A$ of the oscillations of the spring. 2) Now consider that at $t=0$ the mass is at rest and the spring is not compressed. Graph the speed of the mass with respect to the floor from $t=0$ to $t=5T_2$, where $T_2$ is the time period of the oscillations de x(t), where $x(t)$ is the position of the mass measured from the initial point. Determine the average speed during its first 100 hundred time period of oscillations. Sorry, if there are any grammatical mistake, I am not an english native.  Tags constant, harmonic, motion, motion in one dimension, moving, speed, spring, spring constant Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Physics Forum Discussions Thread Thread Starter Forum Replies Last Post Batmannov Kinematics and Dynamics 1 Jan 10th 2019 11:34 AM tMas Energy and Work 1 Mar 25th 2010 06:53 PM Liberal Arts Major Advanced Mechanics 1 Feb 13th 2009 12:51 PM transgalactic Advanced Mechanics 0 Feb 10th 2009 10:44 PM guyman General Physics 2 Sep 12th 2008 07:53 AM 