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An astronaut throws a ball on the moon, where there is no air. At the same time someone throws a ball on earth using the same force.
Which ball will travel a greater distance before it hits the ground? Explain.
The ball thrown on the moon will travel the greatest distance because there is no air resistance on the moon. The force of gravity is also greater on the ball that was thrown on earth.
Air resistance and gravity decrease the distance a ball with travel here on earth.