General Questions 



How far horizontally from its initial position does the projectile land? 
Is the projectile being accelerated as it passes through point A? 
On the graph, the slope of the tangent drawn at point J represents the projectile's instantaneous velocity, v_{J}. To one decimal place, the lower point on the "tangent triangle" is (0.40, 12.2) and the upper point is (1.2, 20.0). Based on this coordinates, what would be our best estimate of the value of v_{J}? 
How high is position A, the apex? 
What is the total distance traveled by the projectile from its initial release position to it location at t = 3 seconds? 
What is the net displacement of the projectile from its initial release position to it's location at t = 3 seconds? 
We can use the equation to model the motion of our projectile. For any object in freefall, there is negligible air resistance and we use the value of a = 9.8 m/sec ^{2}, or a = g, for its acceleration. Using this value for acceleration and the data from our graph and previous answers, find the original velocity (the variable v _{o} in our formula) with which the projectile was initially launched. 

