A truck accelerates from a speed of 5.6 m/s to 8.1 m/s in 5.0 seconds. The average rate of acceleration during this 5.0-seconds is approximately-
0.5m/s/s
1.1 m/s/s
1.6 m/s/s
2.7 m/s/s

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! 55 !  

write a paragraph or story to explain the transformation between potential and kinetic energy as shown in your picture or model.  

you should have at least 5 complete sentences with a main idea and supporting details.  

you must include the following words:  

potential energy

kinetic energy

mechanical energy

conservation of energy

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e) none of the above answers are correct