Classical Dynamics of Particles and Systems
5th Edition
ISBN: 9780534408961
Author: Stephen T. Thornton, Jerry B. Marion
Publisher: Cengage Learning
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A particle P of mass 2m can slide along a smooth rigid straight wire. The wire has one ofits points fixed at the origin ’O’, and is made to rotate in a plane through ’O’ with constantangular speed Ω. Show that r , the distance of P from O, satisfies the equation
r ̈ − (Ω^2)*r = 0
Initially, P is at rest (relative to the wire) at a distance a from O. Find r as a function of t in the subsequent motion.
If Force B on the x-z plane is equal to 300N and h = 4m and v = 10m, then what is the i and k components of Force B?
The Brachistochrone Problem: Show that if the particle is projected withan initial kinetic energy 1/2 m v02 that the brachistochrone is still a cycloidpassing through the two points with a cusp at a height z above the initialpoint given by v02 = 2gz.
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- A point mass is constrained to move on a massless hoop of radius a fixedin a vertical plane that rotates about its vertical symmetry axis with constantangular speed ω. Obtain the Lagrange equations of motion assuming the only external forces arise from gravity. What are the constants of motion? Show that if ω is greater than a critical value ω0, there can be a solution in which the particle remains stationary on the hoop at a point other than at thebottom, but that if ω < ω0, the only stationary point for the particle is atthe bottom of the hoop. What is the value of ω0?arrow_forwardVerify that each of the following force fields is conservative. Then find, for each, a scalar potential φ such that F = −∇φ.(1). F = i − zj − yk.arrow_forward. Consider a system of N particles in a uniform gravitational field. Prove that the total gravitational torque about center of mass(CM) is zero.?arrow_forward
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