Suppose the position of an object moving in a straight line is given by s(t) = 4t² + 5t + 2. Find the instantaneous velocity when t= 1.

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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**Problem Statement:**

Suppose the position of an object moving in a straight line is given by \( s(t) = 4t^2 + 5t + 2 \). Find the instantaneous velocity when \( t = 1 \).

**Explanation:**

This problem involves finding the instantaneous velocity of an object based on its position function \( s(t) \). The position function is a quadratic expression in terms of time \( t \).

**Solution Strategy:**

1. **Differentiate the Position Function:**
   - To find the instantaneous velocity, differentiate the position function \( s(t) \) with respect to time \( t \). This gives the velocity function \( v(t) \).

2. **Evaluate the Velocity Function:**
   - Substitute \( t = 1 \) into the velocity function to find the instantaneous velocity at that specific time.
Transcribed Image Text:**Problem Statement:** Suppose the position of an object moving in a straight line is given by \( s(t) = 4t^2 + 5t + 2 \). Find the instantaneous velocity when \( t = 1 \). **Explanation:** This problem involves finding the instantaneous velocity of an object based on its position function \( s(t) \). The position function is a quadratic expression in terms of time \( t \). **Solution Strategy:** 1. **Differentiate the Position Function:** - To find the instantaneous velocity, differentiate the position function \( s(t) \) with respect to time \( t \). This gives the velocity function \( v(t) \). 2. **Evaluate the Velocity Function:** - Substitute \( t = 1 \) into the velocity function to find the instantaneous velocity at that specific time.
**Problem Statement:**

A borrower had a loan of $80,000.00 at 5% compounded annually, with 7 annual payments. Suppose the borrower paid off the loan after 4 years. Calculate the amount needed to pay off the loan.

*Calculation Required:*
- Determine the outstanding loan balance after 4 years. 

Since no specific table, graph, or diagram was provided, the focus here is on understanding the loan repayment calculation with given parameters.
Transcribed Image Text:**Problem Statement:** A borrower had a loan of $80,000.00 at 5% compounded annually, with 7 annual payments. Suppose the borrower paid off the loan after 4 years. Calculate the amount needed to pay off the loan. *Calculation Required:* - Determine the outstanding loan balance after 4 years. Since no specific table, graph, or diagram was provided, the focus here is on understanding the loan repayment calculation with given parameters.
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