Question: At a practice session a soccer goalie is practicing rolling a soccer ball along the ground. To improve his strength he also practices rolling a

At a practice session a soccer goalie is practicing rolling a soccer ball along the ground. To improve his strength he also practices rolling a bowling ball. The coach measures the speed of both balls and sees that, when the goalie pushes as hard as he can, the soccer ball has a speed of 15 m/s just after it leaves the goalie's hand, but the bowling ball has a speed of 2 m/s. What's an explanation for why the bowling ball's speed is much less than the soccer ball's speed, just after they left the goalie's hands. Assuming the goalie applied the same strength force to both balls for the same amount of time

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