Aparticle moves along a horizontal path with a velocity of v = t -7t + 12 m/s, where t is the time in second. if it is initially located at x = 1 m, determine the position of the particle, the distance traveled and the particle's average velocity in 6 second. vt-7t 2 ms im t 0

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.