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The distance between point A and B is 500m, an object is moving at 50m/s, the object will stop exactly at 500m when it's deceleration reaches zero after 5 seconds, the deceleration is constant, how do I calculate the deceleration?

DnBs
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  • Can you relate position, velocity and acceleration? – Toby Mak Dec 15 '18 at 13:38
  • If an object starts at $50$ m/s, and decelerates to zero in $5$ seconds, it will not travel $500$ meters in that time. I suspect you have described the problem differently than it was meant to be understood. – David K Dec 15 '18 at 14:09
  • I'm voting to close this question as off-topic because there seems to be an error and the author does not comment/correct it – Andrei Dec 17 '18 at 00:06

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If the deceleration is constant, then you cam calculate it easily: $$d=-\frac{\Delta v}{\Delta t}$$ Where $\Delta v$ is the change of speed: $$\Delta v=v_{final}-v_{initial}$$ and $\Delta t$ is the change of time (the duration of deceleration): $$\Delta t=t_{final}-t_{initial}$$

Botond
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