00:01
Hello, here we have to solve the following problem.
00:03
Two basically starts at the same time from the same place and one cycles, 180 meters due east and then turns north and travels another 1 ,430 meters.
00:16
Let's illustrate it.
00:21
Let's start with showing y and x -axis.
00:26
And here let's direct north to positive y and east to positive x.
00:32
So now let's show how the first one moves.
00:36
So he goes or the bike, the cyclist goes distance d1 to the east and then distance d2 north.
01:01
And the second cyclist starts out by heading north for distance of d3, that is 1950 meters.
01:20
And then going backwards to the final point.
01:25
So this distance is d4.
01:29
First, we have to answer the following question.
01:37
The turning point, how fast is the second cycle is from the campground.
01:41
So we have to calculate distance d4.
01:44
Let's do this.
01:48
And we will be using the coordinate method.
01:52
So let's find first d4x...