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Question 7.S&C.4: At the instant a cannon fires a cannonball horizontally over...

At the instant a cannon fires a cannonball horizontally over a level range, another cannonball held at the side of the cannon is released and drops to the ground. Which ball, the one fired downrange or the one dropped from rest, strikes the ground first?

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Both cannonballs hit the ground at the same time, for both fall the same vertical distance. Can you see that the physics is the same as the physics of Figures 15 through 17 ?

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