00:01
Hello, here we have to solve the following assignment.
00:03
First, we have to find k constant of the spring.
00:07
Let's do this.
00:14
So, here, the mass m exerts gravity m.
00:25
And it also, and also the spring exerts the force fs, which balances gravity.
00:32
Therefore, mg equals to k, a, where a, the amplitude is 0 .65 meters.
00:39
And mass is 1 .75 kilograms.
00:44
Therefore, k is mg over amplitude.
01:14
This is 26 .4 newton per meter.
01:19
That is roughly 26 newton per meter.
01:25
Now let's move on to question two.
01:28
In question two, the block is pulled by an additional 0 .18 meters and released from the rest.
01:39
We have to first we have to first we have to, first we have to to find the amplitude of the oscillation.
01:44
So here, amplitude is delta y, which is 0 .18 meters.
01:54
Now we have to find the period of oscillations.
01:58
The period equals to 2 pi times square root of m over k.
02:32
That is 1 .6 seconds...