Homework Statement
A kite 100 ft above the ground moves horizontally at a speed of 8 ft/s. At what rate is the angle between the string and the horizontal decreasing when 200 ft of string has been let out?
Homework Equations
The Attempt at a Solution
I have done the pythagreon...
Homework Statement
a spotlight won the ground shines on a wall 12 m away if am man 2 m tall walks from the spotlight towards the building at a speed of 1.6 m/s how fast is the length of his shadow on the building decreasing when he si 4 m from the building?
Homework Equations
using...
trying to learn related rates as well, this is what i got tell me if i am wrong here...
draw triangle ABC with A being the light, B being the base of building, and C being top of shaddow/building.
the second triangle is formend with the man and the light, using ADE, D being the mans feet...