The rate of change of a shadow

Author:ekazakevich, Mark Willis, Doug Kuhlmann

A man running from a street lamp.

A street lamp is 8m high. A man of height 1.6m walks along the street away from the lamp at a steady rate of 1 m/s. At what rate is the length of his shadow changing?

New Resources

Isosceles Right Triangle
Right Triangle Inscribed in a Semicircle
Function art 3D - waiting shed (v2)
What Do You See?
GeoGebra 3D Modeling Workshop (March 8 2024)

Discover Resources

Proving Pythagorean Theorem (Proof 1)
Mr.Money-Ivan 1c
กราฟของสมการเชิงเส้นตัวแปรเดียว
Theorem on isosceles triangle
Geometry

Discover Topics

Correlation
Tangent Function
Statistics
Quadrilaterals
Tree Diagrams