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Problem 12-49: Engineering Mechanics- Dynamics (Hibbeler 14th Edition)

Name: Problem 12-49: Engineering Mechanics- Dynamics (Hibbeler 14th Edition)
Uploaded: 2026-07-20T22:16:01.540Z
Description: A jet car is originally traveling at a velocity of 10 m/s when it is subjected to the following piecewise acceleration: $$a(t) = \begin{cases} 6 \ \text{m/s}^2 & 0 \le t < 15 \ \text{s} \\ -4 \ \text{m/s}^2 & t \ge 15 \ \text{s} \end{cases}$$ When $t = 0$, $s = 0$. Determine **(1)** the car's maximum velocity and **(2)** the time $t'$ when the car stops.

Engineering Mechanics Dynamics · R.C. Hibbeler · Chapter 12

Course: Engineering Mechanics Dynamics Book: R.C. Hibbeler Chapter: Chapter 12

Question

A jet car is originally traveling at a velocity of 10 m/s when it is subjected to the following piecewise acceleration: $$a(t) = \begin{cases} 6 \ \text{m/s}^2 & 0 \le t < 15 \ \text{s} \\ -4 \ \text{m/s}^2 & t \ge 15 \ \text{s} \end{cases}$$ When $t = 0$, $s = 0$. Determine **(1)** the car's maximum velocity and **(2)** the time $t'$ when the car stops.

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Problem 12-49: Engineering Mechanics- Dynamics (Hibbeler 14th Edition)

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