A spotlight on the ground shines on a wall of a building 20 feet away. If a man 6ft tall walks from the spotlight toward the wall at a speed of 5ft/s, how fast is the length of his shadow on the wall changing when he is 12 feet from the wall?
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The concept of demand and supply is important for various factors. One of them is studying and evaluating the condition of an economy within a given period of time. The analysis or evaluation of the demand side factors are important for the suppliers to understand the consumer behavior. The evaluation of supply side factors is important for the consumers in order to understand that what kind of combination of goods or what kind of goods and services he or she should consume in order to maximize his utility and minimize the cost. Therefore, in microeconomics both of these concepts are extremely important in order to have an idea that what exactly is going on in the economy.
A spotlight on the ground shines on a wall of a building 20 feet away. If a man 6ft tall walks from the spotlight toward the wall at a speed of 5ft/s, how fast is the length of his shadow on the wall changing when he is 12 feet from the wall?
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