3. | A cannon tilted upward at 30 res a cannonball with a speed of 100 mls. What is the component of the cannonball's velocity parallel to the

How do you know which formula to use and how do you get the answer

3. | A cannon tilted upward at 30° fires a cannonball with a speedof 100 mls. What is the component of the cannonball’s velocityparallel to the ground? 4, A small plane is 100 km due east of Denver. After 1 hour of flying at aconstant speed in the same direction, it is 200 km due north of Denver. What is the plane’s velocity?