Answer:(a)10 ft/s
(b)4 ft/s
Explanation:
Given
height of light
height of man
From diagram
differentiate both sides
Tip of shadow is moving at the rate of
(b)rate at which length of his shadow is changing
Length of shadow is
differentiating w.r.t time
Answer:both diagrams are attached.
Answer:
it’s cosmopolitan
k12