Scooby-Doo! A Science of Forces and Motion Mystery: The Rogue Robot

Scooby-Doo! A Science of Forces and Motion Mystery: The Rogue Robot — page 3 — Everything's running but no one is here Fred exclaimed A robot is riding the coaster How is that possible Daphne asked It could be gravity Velma said It's a force that keeps the coaster in motion once it starts Like what's a force Shaggy asked

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