please Help in calculus?
please if anyone explains how to do this i will appreciete
A jogger runs around a circular track of radius 75 ft. Let (x,y) be her coordinates, where the origin is the center of the track. When the jogger's coordinates are (45,60), her x-coordinate is changing at a rate of 13 ft/s. Find . dy/dt
- Old TeacherLv 78 years agoFavorite Answer
The circle is x^2+ y^2= 75^2
2x*dx/dt + 2y* dy/dt= 0
Now plug in x= 45, y= 60, dx/dt= 13
Hoping this helps!