00:05
Okay, so starting off with part a, it wants us to determine the pump rod position h and the velocity h dot.
00:22
So h represents the height of the pump rod at a given instant.
00:27
H dot represents the rate at which the pump rod is moving vertically.
00:36
So the position at point a, a is fixed at the origin, so its position in the x, y plane is a equals 0.
00:45
0.
00:48
For the position of point b, we have b is equal to 3, cosine of 261, and 3 sign of 261.
01:06
For position d, we have b of x plus 1 .5 cosine of 43, and then we have b y plus 1 .5 sine of 40.
01:25
And then lastly, for point e, we have dx plus 2 .5 cosine of 261 times d .y plus 2 .5 sine of 261...