Question: 1. A ball is rolled from a flat surface and is in the air for 9 . 6 6 s before hitting the ground 5

1. A ball is rolled from a flat surface and is in the air for $9.66$ s before hitting the ground $521$ m away. What was the initial velocity of the object?

2. An object that is launched from a flat surface is in the air for $5.23$ s before landing $68.6$ m away. If its initial velocity is $28.8 \frac{}{} m/s ,$ what was the object's launch angle?

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