Jacob is traveling at 5.00 m/s north. jacob throws a ball with a velocity of 5.00 m/s south. jacob throws the ball from a height of 1.45 m above the ground. assuming gravitational acceleration is 9.81 m/s^2, how long does the ball stay in the air after it is thrown? describe the motion of the ball relative to the ground. describe the motion of the ball relative to jacob.

Review multiple-concept example 7 in this chapter as an aid in solving this problem. in a fast-pitch softball game the pitcher is impressive to watch, as she delivers a pitch by rapidly whirling her arm around so that the ball in her hand moves in a circle. in one instance, the radius of the circle is 0.626 m. at one point on this circle, the ball has an angular acceleration of 66.1 rad/s2 and an angular speed of 12.6 rad/s. (a) find the magnitude of the total acceleration (centripetal plus tangential) of the ball. (b) determine the angle of the total acceleration relative to the radial direction.