Physics Question #15 is attached image ### Physics Problem: Calculating Average Acceleration**Problem Statement:****15. (a)** Suppose that a NASCAR race car is moving to the right with a constant velocity of +82 m/s. What is the average acceleration of the car?**(b)** Twelve seconds later, the car is halfway around the track and traveling in the opposite direction with the same speed. What is the average acceleration of the car?**Solution Breakdown:**1. **Understanding Velocity and Acceleration:** - Velocity is the speed of an object in a given direction. - Acceleration is the rate of change of velocity with respect to time.2. **Part (a):** - Since the car is moving with a constant velocity of +82 m/s to the right, there is no change in speed or direction. - The average acceleration in this scenario is 0 m/s² because there is no change in velocity.3. **Part (b):** - After 12 seconds, the car is now moving in the opposite direction with the same speed. - The initial velocity (v_i) is +82 m/s. - The final velocity (v_f) is -82 m/s (indicating the opposite direction). The change in velocity (Δv) = v_f - v_i = -82 m/s - (+82 m/s) = -164 m/s.4. **Calculating Average Acceleration:** - Average acceleration (a) is given by the change in velocity (Δv) divided by the time taken (Δt). - Δt = 12 seconds. \[ a = \frac{\Delta v}{\Delta t} = \frac{-164 \, \text{m/s}}{12 \, \text{s}} = -13.67 \, \text{m/s}^2 \]Therefore, the average acceleration of the car is -13.67 m/s². This negative sign indicates that the car is accelerating in the opposite direction to its initial velocity.

Name: Physics Question #15 is attached image ### Physics Problem: Calculatin
Uploaded: 2024-03-05T11:56:34.000Z
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Description: Physics Question #15 is attached image ### Physics Problem: Calculating Average Acceleration**Problem Statement:****15. (a)** Suppose that a NASCAR race car is moving to the right with a constant velocity of +82 m/s. What is the average acceleration