Question 5 (Mandatory) (1 point) Which arithmetic finds the acceleration of an automobile whose speed decreases from \( 22 \mathrm{~m} / \mathrm{s} \) to \( 10 \mathrm{~m} / \mathrm{s} \) in 8 seconds. \( (10-22) / 8 \) \( (22-10) / 8 \) \( (22-10)^{*} 8 \) \( (10-22)^{*} 8 \)

To find the acceleration of an automobile whose speed decreases from \( 22 \, \text{m/s} \) to \( 10 \, \text{m/s} \) in 8 seconds, we use the formula for acceleration: \[ \text{Acceleration} = \frac{\text{Final Velocity} - \text{Initial Velocity}}{\text{Time}} \] In this case, the final velocity is \( 10 \, \text{m/s} \) and the initial velocity is \( 22 \, \text{m/s} \). Therefore, we can substitute these values into the formula: \[ \text{Acceleration} = \frac{10 \, \text{m/s} - 22 \, \text{m/s}}{8 \, \text{s}} = \frac{-12 \, \text{m/s}}{8 \, \text{s}} = -1.5 \, \text{m/s}^2 \] The correct arithmetic expression that represents this calculation is: \[ (10 - 22) / 8 \] So the answer is: \((10 - 22) / 8\)