00:01
In this question, you are given an equation that describes the location of mass oscillating on a spring as function of time, which is here.
00:09
So let me rewrite this equation.
00:12
I think it's not copied down correctly.
00:15
So yt equals a sine 2 pi ever t times t minus pi over two.
00:24
So that would be the equation of the displacement of this mass as function of time t.
00:36
And a is the oscillation amplitude.
00:39
T is the oscillation period, right? and half a part is just the phase, right? so you can imagine that this mass is, for example, hind to a spring, right? and it's just oscillating, right? and suppose this is the wide reduction, right? so this is basically some equation that describes the displacement as a function of t.
01:07
And you asked if a is 5 centimeters, let me put it in, 5 centimeter and times sine.
01:16
And a t is one, t is what? t is 3 seconds, 2 par over 3 seconds...
