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A fly ball is hit to the outfield. Durin...

A fly ball is hit to the outfield. During its flight (ignore the effects of the air), what happens to its (a) horizontal and (b) vertical components of velocity? What are the (c ) horizontal and (d) vertical components of its acceleration during ascent, during descent, and at the topmost point of its flight?

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(a) `v_(x)` constant, (b) `v_(y)` initially positive, decreases to zero, and then becomes progressively more negative, ( c) `a_(x)=0` throughout, (d) `a_(y)=-g` throughout
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