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A baseball is hit with a speed of 30.0 m/s at an angle of 43.0 degrees. It lands on the flat roof of a 12 meter tall nearby building. If the ball was hit when it was 1.1 m above the ground, what horizontal distance does it travel before it lands on building?

Exactly 3.0s after a projectile is fired into the air from a flat ground, it is observed to have velocity v= (8.6i+4.8j) ms-1, where x is the horizontal and y axis is positive upward. Find out

(a) Horizontal angle of projectile.

(b) Its maximum height above the ground, and

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