00:01
Hello and welcome to this video solution of numerate.
00:05
Here it's given that there is this 5 kg block that is placed between two horizontal springs right.
00:12
And okay so let me write the mass of this block is 5 kgs and there are two horizontal springs right.
00:22
And the block is located at the position leveled as x equal to zero in this drawing right.
00:30
Now the block is displaced by a distance of 0 .07 meters from the point x equal to zero and released from rest.
00:42
So that means the one of the spring will get extended and other will be compressed by a distance of 0 .07 meters.
00:54
Now you have to calculate the speed of the block when it passes through x equal to zero position right.
01:00
Now what you can do is you can replace this entire system that means a system where we have got two springs with a mass right into one system which consists of one spring and the mass.
01:17
Let's say this is k1 and this is k2.
01:19
This will be k equivalent right.
01:23
Now here you have to understand how to deal with this right.
01:28
So here what you see is that when one is extended by distance x the other one is compressed by the same distance right.
01:39
So both of them are in parallel right combination.
01:46
So k equivalent in this case will be equal to k1 plus k2.
01:51
The values are also given which is 450 plus here you have got 650 right and this is 1100 newton per meter...