A conical pendulum consists of a ball (mass=3 kg) fixed on the end of a massless cord.  The ball moves at a constant velocity of of v=3 m/s in uniform circular motion.  The length of the cord is L=5 m.  Find the angle a that the cord makes with respect to the the y-axis.  g=9.8 m/s^2, r=radius of motion Eq 1: g tan(a)=v^2/r Eq 2: r=L sin(a) Substituting Eq 2 into Eq 1 gives g tan(a)=v^2/L sin(a), which becomes tan(a)sin(a)=v^2/gL or, sin^2(a)/cos(a)=v^2/gL How do I solve for angle a?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter1: Introduction And Vectors
Section: Chapter Questions
Problem 49P
icon
Related questions
Question

A conical pendulum consists of a ball (mass=3 kg) fixed on the end of a massless cord.  The ball moves at a constant velocity of of v=3 m/s in uniform circular motion.  The length of the cord is L=5 m.  Find the angle a that the cord makes with respect to the the y-axis.  g=9.8 m/s^2, r=radius of motion

Eq 1: g tan(a)=v^2/r

Eq 2: r=L sin(a)

Substituting Eq 2 into Eq 1 gives

g tan(a)=v^2/L sin(a),

which becomes

tan(a)sin(a)=v^2/gL

or, sin^2(a)/cos(a)=v^2/gL

How do I solve for angle a?

 

 

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps with 4 images

Blurred answer
Knowledge Booster
Centripetal force
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Principles of Physics: A Calculus-Based Text
Principles of Physics: A Calculus-Based Text
Physics
ISBN:
9781133104261
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Physics for Scientists and Engineers: Foundations…
Physics for Scientists and Engineers: Foundations…
Physics
ISBN:
9781133939146
Author:
Katz, Debora M.
Publisher:
Cengage Learning
Classical Dynamics of Particles and Systems
Classical Dynamics of Particles and Systems
Physics
ISBN:
9780534408961
Author:
Stephen T. Thornton, Jerry B. Marion
Publisher:
Cengage Learning
An Introduction to Physical Science
An Introduction to Physical Science
Physics
ISBN:
9781305079137
Author:
James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:
Cengage Learning