00:01
Hello students, according to part a, we are going to find out the vx from using the time interval 0 less than or equal to x less than 3 meters.
00:15
For this, we have to find out the y value by using a similar triangle aef from the diagram and adc.
00:26
From that we get the value is equal to 100x.
00:30
This is our y value.
00:33
Now force equilibrium along y direction, along y direction, summation f of y is equal to 0.
00:53
So we get ay minus 1 by 2 xy minus vx is equal to 0.
01:06
From that we get vx value as 300 minus 50x square newton.
01:19
Next part b, in part b we are going to again find x value by using a similar triangles bef and bdc.
01:34
We can able to find out the y value is equal to 200 into 4 .5 minus x value.
01:43
Now, shear force function of x gives us the interval of 3 less than or equal to x less than 4 .5 meters.
02:08
This is the time interval...