Question

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dx dt dy dt v=vo +at 1) A car is traveling at +40 m/s and brakes to a stop with constant acceleration over 200 m. a) Draw a picture that shows all the relevant physical quantities, including unknowns b) Solve for the stopping time symbolically based on the given quantites (do not substitute in any values, including 0 values). e) What is the stopping time (numerically)?

Answer 1

Concept: we use equations of kinematics to find the stopping time as follows, ***************************************************************************************************
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ん b= initial velocity 40m/s a accelurahon, it will be opposite to inihal veloci Stoppig dishene mula iven above blem statement 2 final velou sivncx th can stops finall ana we consider initial Posifon X -。1-e