A race car is one lap behind the lead race car when the lead car has 47 laps to go in a
Your
race.
If the speed of the lead car is 61.9 m/s, what
must be the average speed of the second car
to catch the lead car just before the end of the
race (i. e., right at the finish line)? Assume 1
lap is 1.34 km.
Answer in units of m/s.

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.