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A projectile is fired from the 45 m above the ground (the zero level) with an...

A projectile is fired from the 45 m above the ground (the zero level) with an initial velocity of 285 m/s at an angle of 43.5 degrees above the horizontal;
a. How long will this projectile be in the air?
b. How high will this projectile be at the highest point of its trajectory?
c. What will be the range of this projectile?
d. What will be the velocity of this projectile 28.0 seconds after it has been fired?
e. What will be the displacement of the projectile 28.0 seconds after it has been fired?
f. When will this projectile be 1500 meters above the ground?
g. What will be the velocity of this projectile at the highest point of its trajectory?

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