University physics 1

Projectile motion Problems 5 through 7 below involve a ball + y thrown in the air with an initial velocity upward (along the +y) and to the right (along +x). The trajectory of the ball looks approximately like the sketch to the right. Note that the origin of the coordinate system has been chosen to be the initial position of the motion of the ball. 5. Sketch on the axes at the right the x- coordinate of the ball as a function of time and To + x the y-coordinate of the ball as a function of time Write a kinematic equation for x as a function of time. time x coordinate X = Write a kinematic equation for y as a function of time y = (a) When is the speed of the ball a maximum? (Speed is the magnitude of the velocity vector.) When is it a minimum? y coordinate (b) At the highest point in the motion, is the speed of the ball zero or not? (c) When is the x-component of the velocity a maximum? A minimum? (d) When is the y-component of the velocity a maximum? A minimum