Achild aims his air rifle at an angle of 10 degrees above the horizontal. he fires a bb while simultaneously dropping another b-b from rest, from the same height as the rifle barrel. which b-b will hit the ground first

The b-b at rest will hit the ground first

Explanation:

When the first b-b is shot at angle it will first experience some horizontal force of air resistance before it experience another vertical force of resistance when going done while the second b-b only experiences the vertical force of resistance making reach the ground faster.

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