In: Advanced Math
3. Solve the following differential equation
x^2y’’ − 2xy’ + 5y = 0.
A coil spring...
3. Solve the following differential equation
x^2y’’ − 2xy’ + 5y = 0.
- A coil spring is suspended from the ceiling, a 16-lb weight is
attached to the end of it, and the weight then comes to rest in its
equilibrium position. The mass is in a medium that exerts a viscous
resistance of 8 lb when the mass has a velocity of 1 ft/s. It is
then pulled down 12 in. below its equilibrium position and released
with an initial velocity of 2 ft/sec, directed upward.
(a) Use the Laplace
transform to determine the resulting displacement of the weight as
a function of time; the solution of the initial value problem
1/2y’’ + 8y’ + 50y=
0; y(0) =
1, y’(0) = −2.
(b) Write the
solution in the form y(t) =
Re−µt cos(ωt − φ).
Please leave the solution in exact form.
Please solve both with steps