1. Water is poured into conical container at the rate of 10 cm /sec. The cone points directly down and it has a height of 30 cm. and a base radius of 10 cm. How fast is the water level rising when the water is 4 cm. deep? 2. A person 2-meter tall walks towards a lamppost on level ground at a rate of 0.5 m/sec. The lamp on the post is 5 meter high. How fast is the length of the person's shadow decreasing when the person is 3 m. from the post?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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1. Water is poured into conical container at the rate of 10
cm /sec. The cone points directly down and it has a height of 30
cm. and a base radius of 10 cm. How fast is the water level rising
when the water is 4 cm. deep?
2. A person 2-meter tall walks towards a lamppost
on level ground at a rate of 0.5 m/sec. The lamp on the
post is 5 meter high. How fast is the length of the
person's shadow decreasing when the person is 3 m.
from the post?
Transcribed Image Text:1. Water is poured into conical container at the rate of 10 cm /sec. The cone points directly down and it has a height of 30 cm. and a base radius of 10 cm. How fast is the water level rising when the water is 4 cm. deep? 2. A person 2-meter tall walks towards a lamppost on level ground at a rate of 0.5 m/sec. The lamp on the post is 5 meter high. How fast is the length of the person's shadow decreasing when the person is 3 m. from the post?
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