𝑎(𝑡)=8.7𝑡2+6,where 𝑡 is measured in seconds.1. Write an equation for the velocity 𝑣 at time 𝑡. Simplify your answer.𝑣(𝑡)=
Question
𝑎(𝑡)=8.7𝑡2+6,where 𝑡 is measured in seconds.1. Write an equation for the velocity 𝑣 at time 𝑡. Simplify your answer.𝑣(𝑡)=
Solution
To find the velocity at time given the acceleration , we need to integrate the acceleration function with respect to time. Here are the steps:
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Write down the given acceleration function:
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Recall that velocity is the integral of acceleration:
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Set up the integral:
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Integrate each term separately:
- The integral of with respect to is:
- The integral of with respect to is:
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Combine the results and add the constant of integration :
So, the equation for the velocity at time is:
Here, is the constant of integration, which can be determined if an initial condition (such as the initial velocity) is provided.
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