coetzeejane109 coetzeejane109

14-03-2024
Physics

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A car goes from traveling at 34 m/s to 20 m/s at an acceleration of -2 m/s². How long did the change in velocity take? t = [ ? ] s Remember: a AV = t 13 me (s)

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MathPhys MathPhys

14-03-2024

Answer:

7 s

Explanation:

Given:

u = 34 m/s

v = 20 m/s

a = -2 m/s²

Find: t

v = u + at

20 = 34 + (-2) t

t = 7 s

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