What is the equation for finding maximum velocity in a displacement problem?

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SUMMARY

The maximum velocity in a displacement problem can be calculated using the equation for final velocity: v = u + at, where u is the initial velocity, a is the acceleration, and t is the time. In this case, with a displacement of 0.4 km, a time of 0.75 seconds, and an average acceleration of -0.1 km/s², the negative acceleration indicates a deceleration scenario. It is crucial to maintain the correct signs in calculations to ensure accurate results. Understanding the context of the problem is essential for interpreting the numerical data effectively.

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1. Information I have:

v=??
d=0.4 km
t=0.75 s
average acceleration= -.1 km/s2


Homework Equations



Need to find out what is the maximum speed that car will not reach displacement (acceleration doesn't change)



The Attempt at a Solution



final velocity= starting velocity + acceleration x time
 
Physics news on Phys.org
For a PHYSICS problem the numbers are not the main thing.
If you don't explain what actually happens in the problem the numbers are meaningless.
It will help you too to try first to UNDERSTAND what is going on and then look at the numbers.
So don't dismiss the "story" in a problem, this is the main part...
 
Last edited:

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