using System;
using L=Science.Physics.GeneralPhysics;
namespace Serway.Chapter10
{
///
/// Example09: The Net Torque on a Cylinder
/// A one piece cylinder is shaped as shown in Figure 10.15,
/// with a core section protruding from the large drum.
/// The cylinder is free to rotate about the central axis
/// shown in the drawing. A rope wrapped around the drum,
/// which has radius R_1, exerts a force T_1 to the right on the
/// cylinder. A rope wrapped around the core, which has
/// radius R_2, exerts a force T_2 downward on the cylinder.
/// (A) What is the net torque acting on the cylinder about
/// the rotation axis (which is the z axis in Figure 10.15)?
/// (B) Suppose T_1 = 5.0 N, R_1 = 1.0 m, T_2 = 15.0 N
/// and R_2 = 0.50 m. What is the net torque about the
/// rotation axis, and which way does cylinder rotate
/// starting from rest?
///
public class Example09
{
public Example09()
{
}
private string result;
public string Result
{
get{return result;}
}
public void Compute()
{
L.Position r1 = new L.Position();
r1.Y = 1.0;
L.Position r2 = new L.Position();
r2.X = -0.5;
L.Force f1 = new L.Force();
f1.X = 5.0;
L.Force f2 = new L.Force();
f2.Y = -15.0;
L.Torque tau1 = new L.Torque(r1,f1);
L.Torque tau2 = new L.Torque(r2,f2);
L.Vector totaltau = tau1 + tau2;
result+=totaltau.ToString();
}
}
}
//0 +/- 0 i +0 +/- 0 j +2.5 +/- 0 k