#4: When a 3 kg mass is attached to a spring whose constant is 147 N/m, it comes to rest in the equilibrium position. Starting at t=0, a force equal to f(t) = 6e-31 cos 5t is applied to the system. In the absence of damping, (a) find the position of the mass when t=n. (b) what is the amplitude of vibrations after a very long time?

Q: Given the top and front view create a section view.

A: Find Create a section view using the given top and front views.

Q: why is the angle 26.56 and then you use 22.56

A:

Q: 2 ft 2 ft 3 ft A 6 ft

A:

Q: for this question just sketch what it should look like:

A: Note : Window is denoted by point P

Q: Why cos(60 if I don't see that angle in the figure

A: This question can be solved by labelling angles.

Forced undamped vibrations

In mechanical engineering, vibration is expressed as the term that occurs due to an object's backward and forward movement about a point of equilibrium. Generally, there are three types of vibrations which are,