Solution:
We find when and given
that units/s and .
Differentiating , we have
Putting and ,we have
.
An object is moving in the clockwise direction around the unit circle . As it passes through the point , its y-coordinate is decreasing at the rate of 3 units per second. The rate at which the x-coordinate changes at this point is (in units per second)
We find when and given
that units/s and .
Differentiating , we have
Putting and ,we have
.