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A TRAIN GOES FORWARD AT A SPEED OF 1M/S FOR 20 SECONDS. THEN IT STOPS AND GOES BACKWARD AT A SPEED OF 0.5M/S FOR 4 SECONDS. AFTER BOTH MOVEMENTS ARE COMPLETED, HOW FAR IS THE TRAIN LOCATED FORM ITS STARTING POINT? WHAT IS THE TRAIN'S FINAL LOCATION?

displacement=120-.44 m

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