A particle is moving on a straight line with the acceleration and initial velocity a(t) = 2t - 2, v(0) = -3. Find the distance travelled by this particle during 0 ≤ t ≤ 4.

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### Physics Problem: Particle Motion

**Problem Statement:**

A particle is moving on a straight line with the acceleration and initial velocity given by:

\[ a(t) = 2t - 2 \]
\[ v(0) = -3 \]

Find the distance traveled by this particle during \( 0 \le t \le 4 \).

---

**Solution:**

The acceleration function \( a(t) = 2t - 2 \) is given. To find the velocity function \( v(t) \), we integrate the acceleration with respect to time \( t \):

\[ v(t) = \int (2t - 2) \, dt \]
\[ v(t) = t^2 - 2t + C \]

We use the initial condition \( v(0) = -3 \) to find \( C \):

\[ v(0) = 0^2 - 2(0) + C = -3 \Rightarrow C = -3 \]

So, the velocity function is:

\[ v(t) = t^2 - 2t - 3 \]

Next, to find the position function \( x(t) \), we integrate the velocity function with respect to time \( t \):

\[ x(t) = \int (t^2 - 2t - 3) \, dt \]
\[ x(t) = \frac{t^2}{3} - t^2 - 3t + D \]

We'll assume the initial position \( x(0) = 0 \) to find \( D \):

\[ x(0) = 0 \Rightarrow D = 0 \]

So, the position function is:

\[ x(t) = \frac{1}{3}t^3 - t^2 - 3t \]

To find the distance traveled during \( 0 \le t \le 4 \):

We should calculate \( x(4) - x(0) \):

\[ x(4) = \frac{1}{3}(4)^3 - (4)^2 - 3(4) \]
\[ x(4) = \frac{1}{3}(64) - 16 - 12 \]
\[ x(4) = 21.33 - 16 - 12 \]
\[ x(4) = -3.67 \]

Thus, the total distance traveled by the particle is
Transcribed Image Text:### Physics Problem: Particle Motion **Problem Statement:** A particle is moving on a straight line with the acceleration and initial velocity given by: \[ a(t) = 2t - 2 \] \[ v(0) = -3 \] Find the distance traveled by this particle during \( 0 \le t \le 4 \). --- **Solution:** The acceleration function \( a(t) = 2t - 2 \) is given. To find the velocity function \( v(t) \), we integrate the acceleration with respect to time \( t \): \[ v(t) = \int (2t - 2) \, dt \] \[ v(t) = t^2 - 2t + C \] We use the initial condition \( v(0) = -3 \) to find \( C \): \[ v(0) = 0^2 - 2(0) + C = -3 \Rightarrow C = -3 \] So, the velocity function is: \[ v(t) = t^2 - 2t - 3 \] Next, to find the position function \( x(t) \), we integrate the velocity function with respect to time \( t \): \[ x(t) = \int (t^2 - 2t - 3) \, dt \] \[ x(t) = \frac{t^2}{3} - t^2 - 3t + D \] We'll assume the initial position \( x(0) = 0 \) to find \( D \): \[ x(0) = 0 \Rightarrow D = 0 \] So, the position function is: \[ x(t) = \frac{1}{3}t^3 - t^2 - 3t \] To find the distance traveled during \( 0 \le t \le 4 \): We should calculate \( x(4) - x(0) \): \[ x(4) = \frac{1}{3}(4)^3 - (4)^2 - 3(4) \] \[ x(4) = \frac{1}{3}(64) - 16 - 12 \] \[ x(4) = 21.33 - 16 - 12 \] \[ x(4) = -3.67 \] Thus, the total distance traveled by the particle is
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