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AleksAgata [21]
3 years ago
9

David is driving a steady 30 m/s when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2

.0 m/s2 at the instant when David passes. How far does Tina drive before passing David?

Physics
1 answer:
dangina [55]3 years ago
5 0
A. 441 m B: 46.0 m/s
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Answer:

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(d). The mecanical energy is the kinetic energy when the velocity is a maximum

E_{m}=E_{k}(v_{max})=\frac{mv_{max}^{2}}{2}=\frac{30*10^{-3}kg(4\frac{m}{s})^{2}}{2}=0.024J

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