Harmonic motion Definition and 1000 Threads

Homework Statement A car uniformly accelerates. Show an open door that slams shut will do so in simple harmonic motion.Homework Equations The Attempt at a Solution This seems more conceptual than mathematical. I considered using T = Ia but the problem is the torque would act on the pivot (point...

If you couldn't tell I am new to the board so any tips would be appreciated :) edit once again, I am sorry for not showing work but i really don't understand it, when i do the work i just kinda wing it and throw stuff together Homework Statement As shown a 0.5 kg mass is attached to a spring...

Homework Statement It is a three part question in which I have successfully answered the first two of the questions. Part. 1 A weight suspended from a spring is seen to bob up and down over a distance of 10 cm twice each second. What is the frequency? 2 Hz is the...

A uniform meter stick is hung at its center from a thin wire. It is twisted and oscillates with a period of 5 s. The meter stick is then sawed off to a length of 0.76 m, rebalanced at its center, and set into oscillation. what is its new period I= 1/12 mL^2 equation: T= 2 pi * sqrt (I/k) where...

Homework Statement A horizontal piston-cylinder system containing n mole of ideal gas is surrounded by air at temperature T_{0} and pressure P_{0}. If the piston is displaced slightly from equilibrium, show that it executes simple harmonic motion with angular frequency...

Homework Statement A 74.4-kg bungee jumper is standing on a tall platform (h0 = 46.6 m). The bungee cord has an unstrained length of L0 = 9.54 m and, when stretched, behaves like an ideal spring with a spring constant of k = 61.8 N/m. The jumper falls from rest, and it is assumed that the only...

1. A 0.69 kg block is hung from and stretches a spring that is attached to the ceiling. A second block is attached to the first one, and the amount that the spring stretches from its unstrained length increases by a factor of 5. What is the mass of the second block? 2. Force= spring...

Homework Statement A 0.200-m uniform bar has a mass of 0.790 kg and is released from rest in the vertical position, as the drawing indicates. The spring is initially unstrained and has a spring constant of k = 20.0 N/m. Find the tangential speed with which end A strikes the horizontal surface...

Homework Statement A very light, rigid rod with a length of 0.570 m extends straight out from one end of a meter stick. The stick is suspended from a pivot at the far end of the rod and is set into oscillation. Determine the period of oscillation. Homework Equations omega =...

The Question Relevant equations KE=0.5*m*v^2 T=2*pi*sqrt(m/k) EE=0.5*k*x^2 KEi+UEi=KEf+UEf I think that's all of them attempt at a solution I was thinking about just using the conservation of energy at the the equilibrium point, as the kinetic energy would be at a max there and...

Homework Statement A block rests on a frictionless horizontal surface and is attached to a spring. When set into simple harmonic motion, the block oscillates back and forth with an angular frequency of 6.6 rad/s. The drawing indicates the position of the block when the spring is unstrained...

Homework Statement A 215 g mass attached to a horizontal spring oscillates at a frequency of 5.20 hz. At t=0 s, the mass is at = 4.00 =cm and has velocity 26.0 cm/s. Determine the Amplitude. Homework Equations x(t)=ACos(2(pi)t)/T The Attempt at a Solution Well at t=o x=4, but...

1. Find analytic expressions for the arbitrary constants A and phi in Equation 1 (found in Part A) in terms of the constants C and S in Equation 2 (found in Part B), which are now considered as given parameters. Express the amplitude A and phase phi (separated by a comma) in terms of C and S...

Homework Statement Hey I'm building a graph of period squared vs. mass for simple harmonic motion finding the slope and getting K for a spring. since T^2 = ((4*pi^2)/k)m the slope is (4*pi^2)/k so I get my slope from my graph and it has an uncertainty of +- 0.2 to get K we...

Homework Statement A 0.12-kg block is suspended from a spring. When a small stone of mass 30 g is placed on the block, the spring stretches an additional 5 cm. With the stone on the block, the spring oscillates with an amplitude of 12 cm. What is the net force of the stone when it is at a point...

Simple harmonic motion question! Homework Statement A mass undergoing simple harmonic motion has a displacement of X = 0.5 m and V = 4 m/s at one time and x=.25 and V = -8. what is the period of this oscillation? Homework Equations X(t) = Acos (wt + phi) V(t) = -Awsin (wt + phi)...

Homework Statement A mass of 1 slug is suspended from a spring whose spring constant is 9 lb/ft. The mass is initially released from a point 1 foot above the equilibrium position with an upward velocity of \sqrt{3} ft/s. Find the times at which the mass is heading downward at a velocity of 3...

A mass is suspended by a spring. The mass is pulled down and released at t=0. The equation for its displacement x in m from the equilibrium position is x = 0.050 cos(πt). π = pi = 3.14159 for clarification (because it looks like an n for some reason) (a) What is (i) the amplitude, (ii) the...

Homework Statement The velocity of an object in simple harmonic motion is given by v(t)= -(0.347 m/s)sin(15.0t + 2.00π), where t is in seconds. What is the first time after t=0.00 s at which the velocity is -0.100 m/s? Homework Equations The Attempt at a Solution -0.1 = -(0.347)sin(15t...

I took calc-based physics 1 last semester, but since it was at a community college, I don't think we went as far as the 4 year universities went. We skipped over simple harmonic motion. Will this hurt me later on, when I go to mid-level and upper-level physics courses at the 4-year university...

Homework Statement A 180 g mass on a 2.5m long string is pulled 6.6 degrees to one side and released. How long does it take for the pendulum to reach 2.7 degrees on the opposite side?Homework Equations omega = sqrt(g/L) theta = S/L theta(t) = A * cos(omega * t + phi) The Attempt at a...

1. Angular frequency is introduced into the analysis of simple harmonic motion because: 1. Because the unit of hz is not a convnient unit for frquency. 2. to create a mathematical relationship between displacement and time. 3. To create a link between mass and frequency of vibration. 4...

Homework Statement A mass spring system has the following parameters: damping constant is 1.00 Ns/m spring constant is 1.00N/m and mass is 1.00 kg The mass is displaced from equilibrium and released. Through what minimum number of oscillations must the mass move in order to reduce the...

Homework Statement A moving particle displays simple harmonic motion with an amplitude of 3 cm. What position will it be for it to have half of its maximum speed? Homework Equations vmax= omega*A The Attempt at a Solution I divided the amplitude by 2 but I believe that's an...

Homework Statement 1. A particle of mass m is constrained to move along a straight line. In a certain region of motion near x = 0 , the force acting on the particle is F = -F_0 sin(bx) , where F_0 and b are positive constants. (a) Find the potential energy of the particle in this region...

Homework Statement The frequency f[SIZE="1"]d of a damped oscillator is 100 Hz, and the ratio of the amplitudes of two successive maxima is one half. What is the undamped frequency f[SIZE="1"]0 of this oscillator?Homework Equations this is the equation in my textbook for the position at time t...

I'm wondering this because my textbook says that for small angles it is, but we learned that for simple harmonic motion to occur there must be a linear restoring force.. eg F= -kx.. but for the simple pendulum the restoring force is F= -mgsin(theta).. wouldn't this not be linear?

Homework Statement A block of unknown mass is attached to a spring with a spring constant of 5.50 N/m and undergoes simple harmonic motion with an amplitude of 12.5 cm. When the block is halfway between its equilibrium position and the end point, its speed is measured to be 25.0 cm/s. (a)...

Homework Statement "A certain spring with the mass of 10kg oscillates with a period of 10 seconds on the earth. What would be its period on a small moon, where the gravity is 1/16 as strong as on the earth?" Homework Equations I'm thinking I have to use the equation...

Homework Statement a particle of mass m moves in one dimension with an applied force Fx=-Fosinh(\alphax) where \alpha and Fo are constants. find the frequency of small oscillations about the equilibrium position. next, find the potential energy function and sketch it. Homework Equations...

Homework Statement A particle of mass m moves in the one dimensional Poschel-Teller potential V(x). Find an expression for the natural frequency of small oscillations. Homework Equations V(x) = -V_{0}sech^{2}(x/\lambda) The Attempt at a Solution I am making the uncertain assumption that...

Homework Statement A spiral spring of natural length 300mm is suspended vertically from a fixesd point with ita upper end fixed .A mass of 0.150 kg is suspended at rest from the lower end of the spring to increase its length to 355mm.The mass is then pulled down a further distance of 30 mm...

i have asked this question before ,yet i ask again, why should we not consider the reciprocating action of the piston as simple harmonic motion? harmonic oscillations are when a particle may oscillate within unequal limits about the mean position a special case in which limits of...

1. Homework Statement [/b] 1)For a mass on a spring,using k=10N/m,m=1kg and amplitude =0.1m.calculate the following: *The displacement 0.2s after release. *The Time-period of oscillation. *The max. Velocity. *The max acceleration. Homework Equations x=Acos\varpit (for...

Homework Statement A uniform circular ring of charge Q= 4.50 microCoulombs and radius R= 1.30 cm is located in the x-y plane, centered on the origin. A point z is located along the Z axis. If z << R then E is proportional to z. (You should verify this by taking the limit of your expression...

1. Prove that the maximum speed of a mass on a spring is given by Vmax = 2pifA f = frequency A= amplitude We have just learned how to relate simple harmonic motion to circular motion. So I am dealing with some of those equations. 3. While writing this out I kind of had a thought and...

Homework Statement A simple pendulum was moving in front of a horizontal scale. the extreme positions of the bob were at the 300mm and 500mm marks. The bob moved from the 350mm to the 450mm marks in 1.0s. What is the period of the oscillations? A. 2.0s B. 3.0s C. 4.0s D. 6.0s Homework...

Hi everyone new here and hope i have put this in the right place? If anyone could help me with this question i would be very grateful. The value w(angular frequancy) is introduced into the analysis of simple harmonic motion A) Because the unit of hz is not a convenient unit for frequancy B)...

Homework Statement A body of uniform cross-sectional area A and mass density ρ floats in a liquid of density ρ0 (where ρ < ρ0), and at equilibrium displaces a volume V. Making use of Archimedes principle (that the buoyancy force acting on a partially submerged body is equal to the mass of the...

Homework Statement "A small body rests on a horizontal diaphragm of a loudspeaker which is supplied with an alternating current of constant amplitude but variable frequency. If the diaphragm executes simple harmonic oscillation in the vertical direction of amplitude 10 µm, at all frequencies...

Problem: A 2.4-kg object on a frictionless horizontal surface is attached to one end of a horizontal spring of force constant k=4.5 kN/m. The other end of the spring is held stationary. The spring is strecthed 10 cm from equilibrium and released. find the system's total mechanical energy...

Homework Statement "Two light springs have spring constants k1 and k2, respectively, and are used in a vertical orientation to support an object of mass m. Show that the angular frequency of small amplitude oscillations about the equilibrium state is [(k1 + k2)/m]^1/2 if the springs are...

is the rotation of the Earth and the revolution of it around sun simple harmonic in nature? it is periodic but not linear.

A new car, car 1, has a spring-loaded rear bumpe with a force constant of 8.4 x 10^5 N/m. While car 1 is parked, a second vehicle, car 2 (with a mass of 1.5 x 10^3 kg), travels at a constant speed of 18 km/h (5 m/s), hitting car 1 in the rear bumper. a) Calculate the kinetic energy of car 2...

Homework Statement a ball that has been placed on top of a coil spring with a spring constant of 575 N/m and a length (h1) of 25.0 cm. As the ball compresses the spring, it contacts a second spring that has a spring constant of 325 N/m and a length (h2) of 15.0 cm. If the ball is 12.5 cm...

Hi! Could someone please check if my following problems are correct? Any insight on why a problem is incorrect would be appreciated. Thanks! 1) An object is hung from a light vertical helical spring that subsequently stretches 2.0 cm. The body is then displaced and set in SHM. Compute the...

Homework Statement A 0.26 kg mass attached to a spring undergoes simple harmonic motion with a period of 0.84 s. What is the force constant of the spring? Homework Equations T = 2*pi*SQRT(m/k) The Attempt at a Solution I know this is supposed to be an easy question, but for some...

Homework Statement A 0.01 kg bullet is fired horizontally into a 2.50 kg wooden block attached to one end of a massless, horizontal spring (spring constant = 845 N/m). The other end of the spring is fixed in place, and the spring is unstrained initially. The block rests on a horizontal...

F_s=-kx=ma, a=\frac{-kx}{m} We now need to find an equation that satisfies: \frac{d^2x}{d^2t}=\frac{kx}{m} We get (letting w^2=k/m): x(t)=A*Cos(wt+\phi) The time it takes for one cycle is:T_1=2 \pi\sqrt{\frac{m}{k} Now, let's solve for T again using a different method...

simple harmonic motion --> amplitude independent of mass? I know that acceleration is directly proportional to displacement, but opposite in sign, and that acceleration and displacement are related by the square of the frequency. But i was wondering if amplitude is independent of mass in...