The rate of change of a shadow

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?

 

Mark Willis

 
Resource Type
Activity
Tags
change  of  rates 
Target Group (Age)
14 – 18
Language
English
 
 
 
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