Math Problem Statement
Solution
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Problem 5:
"An object is sent through the air. Its height is modelled by the function , where is the height of the object in meters, and is the time in seconds. Estimate the instantaneous rate of change in the object's height at seconds."
To solve this, we'll compute the derivative of the height function, , to get the instantaneous rate of change, and then substitute .
Solution:
- The height function is .
- Differentiate to find the rate of change function, :
- To estimate the instantaneous rate of change at seconds, substitute into :
Thus, the instantaneous rate of change in the object's height at seconds is meters per second. This means the object is falling at a rate of 27 m/s at that moment.
Would you like me to solve the next problem (Problem 6) or provide further details on this solution?
Here are 5 related questions to expand your understanding:
- What is the geometric interpretation of the derivative in the context of this problem?
- How would the object's motion change if the coefficient of in were positive?
- What is the meaning of the constant term 65 in the function ?
- How does the sign of indicate whether the object is rising or falling at a given point?
- How can you estimate instantaneous rates of change if a function is given in a table rather than an equation?
Tip:
When estimating instantaneous rates of change from a function, always remember that the derivative gives the slope of the tangent line at any point, which corresponds to the rate of change at that exact moment.
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Math Problem Analysis
Mathematical Concepts
Calculus
Derivatives
Instantaneous Rate of Change
Formulas
Derivative of a quadratic function: d/dx[ax^2 + bx + c] = 2ax + b
Theorems
Derivative Rule
Slope of Tangent Line
Suitable Grade Level
Grade 11-12 (Calculus Level)
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