Physics, 03.08.2019 19:40, melisa18

You're riding on a train that's moving at 5 km/h and you roll a ball down the aisle at 2 km/h in the same direction as the train is moving. if a person standing on the ground near the train track could see the ball how fast would it appear moving

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You're riding on a train that's moving at 5 km/h and you roll a ball down the aisle at 2 km/h in the...