What is Conical pendulum: Definition and 65 Discussions

A conical pendulum consists of a weight (or bob) fixed on the end of a string or rod suspended from a pivot. Its construction is similar to an ordinary pendulum; however, instead of swinging back and forth, the bob of a conical pendulum moves at a constant speed in a circle with the string (or rod) tracing out a cone. The conical pendulum was first studied by the English scientist Robert Hooke around 1660 as a model for the orbital motion of planets. In 1673 Dutch scientist Christiaan Huygens calculated its period, using his new concept of centrifugal force in his book Horologium Oscillatorium. Later it was used as the timekeeping element in a few mechanical clocks and other clockwork timing devices.

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  1. T

    Conical Pendulum: Period and Tension Calculation

    Homework Statement Conical Pendulum Question Mass (m) is attached to the ceiling by a String of Length (s) The string makes an angle of (\theta) with the vertical Compute the Period of Revolution and the Tension in the string? Mass of Bob (m) -- 4.35kg Length of String (s) -- 5.50 meters...
  2. P

    Conical Pendulum force problem

    Homework Statement Consider a conical pendulum with a 78.0 kg bob on a 10.0 m wire making an angle of θ = 5.00° with the vertical. (Consider positive i to be towards the center of the circular path.) (a) Determine the horizontal and vertical components of the force exerted by the wire on...
  3. C

    Speed of Block 3.5s After Start Moving | Conical Pendulum

    A 3.46 kg block located on a horizontal floor is pulled by a cord that exerts a force F = 13.9 N at an angle theta = 26.0° above the horizontal, as shown in the Figure. The coefficient of kinetic friction between the block and the floor is 0.09. What is the speed of the block 3.5 s after it...
  4. P

    Solving Conical Pendulum Problem: Results & Tips

    i was solving thsi problem and attempted it in this manner consider a length dx of the rod at a distance x from the pivot now let \theta be the required angle dx\cos\theta = dm g dx\sin\theta = m\omega^{2}x\sin\theta dividing we get \tan\theta = \frac {\omega^{2}x\sin\theta}{g} which is...
  5. M

    Angular Momentum of a conical pendulum

    Homework Statement A small metallic bob is suspended from the ceiling by a thread of negligible mass. The ball is then set in motion in a horizontal circle so that the thread describes a cone. Given: Length of string = 2.8m Angle between string and vertical: 21 degrees...
  6. M

    Conical Pendulum Homework: Find Ratio of Tangential Speeds

    Homework Statement Consider 2 conical pendulums. The first one has mass M and length L and the second has mass 4M and Length 4L. For both parts the angle theta is 33 degrees. The ratio of the tangential speeds of the two circular motions V2/V1 is? Homework Equations I know that...
  7. H

    Calculating Inclination & Time of Revolution for a Conical Pendulum

    1. The string of a conical pendulum is 1m long. An initial speed of 3m/s causes the bob to describe a horizontal circle. Find the inclination of the string to the vertical and the time of revolution. The answers at the back give 50.1 and 1.6s I'm trying to find the angle that the string makes...
  8. C

    Solve Conical Pendulum: Find Speed, Period, Horiz. Comp., Rad. Accel.

    The Conical Pendulum A small object of mass m is suspended from a string of length L = 1.8 m. The object revolves in a horizontal circle of radius r with constant speed v and angle = 28° Find the speed of the object. i found s=v=2.098. Find the period of revolution, defined as the...
  9. F

    What Is the Angle Between the String and the Vertical in a Conical Pendulum?

    Homework Statement A mass m= 4.7 kg is suspended from a string of length L=1.19m. It revolves in a horizontal circle. The tangential speed of the mass is 2.97 m/s. What is the angle between the string and the vertical (in degree.) Homework Equations r= Lsin(theta) Tension is broken up...
  10. T

    Why did my force analysis for a conical pendulum problem yield the wrong answer?

    I tried to do this pendulum problem with force analysis, but I kept getting a wrong answer. Eventually I figured it out using torque, but I still have no clue why I was getting a wrong answer when I try to use f=ma. Any help appreciated! Homework Statement A conical pendulum, a thin uniform...
  11. W

    Conical Pendulum Problem -Right Way of Solving?

    Hello, I wanted to make sure that I am solving this problem in the correct manner, because one of my answers seems a little off from the book's. "Consider a conical pendulum with an 80.0-kg bob on a 10.0-m wire making an angle of 5.00(degrees) with the veritcal. Determine (a) the horizontal...
  12. D

    Conical Pendulum: A Level Maths Required?

    i know this isn't exactly homework, but i couldn't find anywhere else to put it! we've been doing s.h.m. in physics, and when we considered a simple pendulum my teacher mentioned that you can also have a conical pendulum, but the maths for it is more complicated. i want to know more about this...
  13. S

    Conical Pendulum units problem

    Hello all , I encouter a problem solving this one : We are given a conical pendulum with : V - tan. speed of particle m - mass of rotating particle g - gravity acceleration...
  14. Reshma

    Simple pendulum, a conical pendulum and a compound pendulum?

    What is difference between a simple pendulum, a conical pendulum and a compound pendulum? In which category does a Foucault's pendulum fall in?
  15. D

    Conical Pendulum, Mass and Period

    Hello. I am having trouble understand the varying mass's effect on the period of a conical pendulum. Well, I understand that there is no effect. However, I am having trouble verifying that in a centripetal force equation for circular motion. Most generally, conical pendulum's centripetal...
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