Answer :
Final answer:
Susie's acceleration rate is approximately -18.97 m/s², indicating deceleration. She moves approximately -20.57 meters during the braking period.
Explanation:
To determine Susie's acceleration rate, we can use the equation a = (vf - vi) / t, where vf is the final velocity, vi is the initial velocity, and t is the time.
Substituting the given values, we have a = (1.8 m/s - 29 m/s) / 1.45 s = -18.97 m/s². The negative sign indicates that Susie experienced deceleration, or negative acceleration.
To calculate the distance she moves during the braking period, we can use the equation d = vi * t + (1/2) * a * t², where d is the distance.
Substituting the values, we have d = 29 m/s * 1.45 s + (1/2) * (-18.97 m/s²) * (1.45 s)². Evaluating this expression, we find that Susie moves approximately -20.57 meters during the braking period.
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