00:02
In this question, spider hangs with this slope like this.
00:06
This is spider wave.
00:09
So the mass of the spider is given to be 10 grams.
00:14
So the weight which is acting downwards is equal to we have w is equal to ng.
00:28
So we will have weight equal to 0 .98.
00:37
Now this angle can be approximated as 90 degree.
00:43
So we have to calculate angles.
00:48
Suppose this is a horizontal line.
00:50
So we will calculate this angle such that we get this angle alpha and we will calculate this angle beta just that we get this angle beta and then we will add 90 degree to get this whole angle for both the cases.
01:07
Now we will find alpha will be equal to we have tan inverse of this length that is 1 divided by 0 .75 and alpha will be equal to 53 it is around 53 so this whole angle will be equal to let this be gamma so gamma will be equal to 90 plus alpha and that will be equal to 143...