Purchase Solution

Coordinates of a point on T shaped structure.

Not what you're looking for?

Ask Custom Question

Hi. I don't need a complete solution to the attached problem; I need to understand just one step.

To solve the problem, I need the coordinates of the mass at time t. My professor gave me the hint that, if the l-rod makes an angle wt with the x-axis, then the coordinates of the mass are:

x = l*cos(wt) - r*sin(wt), and y = l*sin(wt) + r*cos(wt)

(those are L's, not 1's).

I have no idea how he extracted those coordinates from the geometry of the problem. If someone can provide some insight, I'd appreciate it.

Attachments
Purchase this Solution
Solution Summary

The coordinates of a point on a rotating rod with T shaped structure are determined using geometry.

Purchase this Solution
Free BrainMass Quizzes
Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

Basic Physics

This quiz will test your knowledge about basic Physics.

The Moon

Test your knowledge of moon phases and movement.

Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

View More Free Quizzes
Related BrainMass Solutions

  • Several algebra problems

    A tent is shaped like a pyramid. It has a square base measuring 8 feet on a side and a height of 6 feet. What is the volume of the tent? 128 ft3 16 ft3 512 ft3 32 ft3 12. 13.

  • Prove algebraically that the stereographic projection of a circle

    The following proof consists of 4 parts: 1. We set up a system of coordinates and notations 2. We find a relation between the coordinates of a point on a sphere and the coordinates of its projection 3.

  • point of intersection

    Hence the point of intersection is given by . The coordinates of the point of intersection are This solution finds the coordinates of the point of intersection.

  • Lagrange Equations: Kinetic Energy of a Particle

    Now consider the case of a point-like bead constrained to move on the surface of a parabolic cup, whose equation, in cylindrical coordinates, is given by z = br2. Write down the kinetic energy of the particle and the generalized forces.

  • Equation of x(t) for a certain point moving with SHM

    6997 Equation of x(t) for a certain point moving with SHM The position x of a certain SHM is expressed by: x = (.25 m) cos (8 t). PART a. Take derivatives to write v(t) and a(t). PART b.

  • Euclidean space - computing distance

    However we can turn this line into a subspace by a simple change of coordinates. Let us move the origin to the point v_0. This is equivalent to the change of coordinates x_{new} = x_{old} - v_0.

  • A wave is generated and moves along a taut wire: amplitude, velocity and wavelength

    ATTACHMENT #1 also shows a stationary axis system, x,y superimposed on the x',y' system. Any point on the wave has x,y coordinates and also x', y' coordinates. We wish to express the traveling wave in terms of x and y coordinates. PART a.

  • Lagrangian for a bead in a frictionless hoop

    That is the coordinates of the bead at any time are $$ eqalign{ x(t) &= Rsinalphacosomega t,cr y(t) &= Rsinalphasinomega t,cr z(t) &= -Rcosalpha,cr } eqno(1) $$ where $R$ is the radius of the hoop and we take the bf coordinates' origin in the

  • Geometries and Bond Angles

    317155 Geometries and Bond Angles Draw the Lewis structure for each of the following molecules or ions, and predict their electron-domain and molecular geometries. 1) PF3 what is PF3's electron-domain geometry?

View More Related Solutions