(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Find the time required for a train to reach 100m if V_{0}=20m/s and acceleration is

0.5m/s^{2}

2. Relevant equations

s=v_{0}t+(1/2)at^{2}

3. The attempt at a solution

i am not sure of how to go about getting s=(20)t+(1/2)0.5t^{2}into quadratic form for use in the quadratic formula

this is my solution without the quad formula

s=v_{0}t+(1/2)at^{2}

100=(20)t+(1/2)0.5t^{2}

5=t+(1/2)0.5t^{2}

5=t+.25t^{2}

5=t^{3}

cube root of 5 is 1.71 which is def wrong:(

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# Homework Help: Quadratic Equations and kinetics

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