Simple harmonic motion Definition and 917 Threads

  1. S

    Simple harmonic motion of two horizontal springs

    Figure 1 shows a mass m in equilibrium between two stretched helical springs on a smooth horizontal surface. k_1 and k_2 are the force constants of the springs and e_1 , e_2 are their respective equilibrium extensions. The mass m is displaced X to one side ( X is smaller than e_1 and e_2 )...
  2. W

    Simple harmonic motion and amplitude of an object

    I have a short question: an object undergoes simple harmonic motion with a period T and amplitude A. How long does it take the object to travel from x = A to x = A/2 ? the answer is T/6, but I am not sure how to get to that, Do I get it from x = Acos(2pi/T xt)? help :cry:
  3. C

    Simple Harmonic Motion Brain Teaser

    I saw this in an old, junior-level, classical mechanics textbook and haven't been able to figure it out. A particle undergoing simple harmonic motion has a velocity: \frac{dx_1}{dt} when the displacement is: x_1 and a velocity \frac{dx_2}{dt} when the displacement is...
  4. U

    Simple Harmonic Motion Problems with Vertical and Horizontal Springs

    i'm stuck on two problems deal wih SHM 1)A mass of .5 kg is attached to a vertical spring and slowly lowered to its equilibrium position; this stretches the spring by 10 cm. Then the mass is placed below in the position whre the stretch of the spring is 15 cm, and released. calculate the...
  5. P

    Simple harmonic motion in a rocket?

    A simple pendulum suspended in a rocket ship has a period T0. Assume that the rocket ship is near the Earth in a uniform gravitational field. (If A and E are true, and the others are not, enter TFFFT). A) If the ship accelerates upward, the period decreases. B) If the ship goes into...
  6. N

    Simple Harmonic Motion Question

    A body oscillates in SHM according to the equation, x = A cos(wt + f) where A = 8.8, ω = 1.070, and φ = 0.420. Assume all quantities are in SI units. What is the period? I don't know how to get the period from this equation? Can anyone lead me in the right direction, please? Thanks! ~Dave W.
  7. D

    Simple harmonic motion homework

    a small creature moves with a constant speed in a vertical circle on a bright day.does its shadow formed by the sun on a hortizantal plane move in simple harmonic motion
  8. D

    Equation for simple harmonic motion

    i was just wondering if anybody knew where i could find the equation for simple harmonic motion (SHM). I have found loads but not the right one. i need the one that starts... y=e(^-3wnt)*Asin(wdt)+(Asin(wt)/SQRT(l-(w^2/wn^2)^2+... anyone got any ideas? got assignment to hand into uni tomorrow...
  9. N

    What's Wrong with My SHM Calculations?

    I've scrolled through other SHO problems and can't really find what I need. I have a homework-test thing and it's only on revision from high school (just started university) and I can't even get it all right! Q1) A mass m at the end of a spring vibrates with a frequency of 1.06 Hz. When an...
  10. H

    Simple harmonic motion and specific gravity. PLEASE HELP

    simple harmonic motion and specific gravity. PLEASE HELP! The problem I need help with is this: In his lecture, Dr. Dyson argued that one could determine the specific gravity of a wine in the absence of a hydrometer. To demonstrate this he constructed a 100g weighted cylinder of Length (L) and...
  11. M

    Simple Harmonic Motion Problems

    Problem 3. A 127 N object vibrates with a period of 3.45 s when hanging from a spring. The acceleration of gravity is 9.81 m/s^2. What is the spring constant of the spring? Answer in N/m. Note: How would one solve this type of problem? Problem 8. A spring with a spring...
  12. denian

    Average Kinetic Energy for Simple Harmonic Motion

    a particle of mass m moving in such manner that its displacement x varies with time t following equation x = a sin wt. ( w = omega ) where a and w are constants. what is the average KE for the motion of the particle in one rev? isnt the answer suppose to be 1/2 mw(sq)a(sq) ?
  13. E

    What Is the Phase Constant in Simple Harmonic Motion?

    The bow of a 5.0E6 kg destroyer undergoes a simple vertical harmonic motion with a period of 8.0 s and amplitude of 2.0 m. The motion of the boat is recorded by a sailor. At t = 0 s, the boat is at 40 cm above the equilibrium point with an initial velocity of -25 cm/s. a) Find the phase...
  14. S

    True or False on Simple harmonic motion

    DO NOT GIVE ME THE ANSWERS, JUST TELL ME HOW MANY ARE WRONG AND I WILL RESEARCH ALL THE ANSWERS. F. Simple harmonic motion can be represented by a sine curve T. A violin string which vibrates with a frequency of 196 Hz produces a sound wave with a a frequency of 1/196 Hz F. A pendulum with...
  15. S

    Rotating Wheel SHM: Piston Distance Calculation

    I just need someone to tell me if I've done the problem right since the answer is mysteriously missing The question is about a rotating wheel causing a piston to execute SHM inside a cylinder (the piston being connected to the outside of the wheel). The wheel rotates with an angular speed...
  16. B

    Simple harmonic motion chapter

    The chapter I'm reading is titled simple harmonic motion and the reference circle. I am so completely lost. It's talking about displacement, velocity, acceleration, and frequency of vibration. I understand displacement, velocity, and acceleration on a linear and angular level. I guess I'm...
  17. C

    Simple harmonic motion dash in equation

    Why is there a '-' sign in the equation a= -w.w.y where a is the centripetal acceleration , w is the angular velocity and y is the displacement[?]
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