For many years colonel john p. stapp, usaf, held the world's land speed record. he participated in studying whether a jet pilot could survive emergency ejection. on march 19, 1954, he rode a rocket-propelled sled that moved down a track at a speed of 632 mi/h. he and the sled were safely brought to rest in 1.40s

(a) determine the negative acceleration he experienced.
__ m/s2
(b) determine the distance he traveled during this negative acceleration.
__ m.

An electric clothes dryer has a resistance of 8 ohms. it draws 30 a of current. what is the voltage, in volts, of the wall outlet that it is plugged into?

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.

The amount of work done is determined by 2 factors. describe an example of work (using the scientific definition) list the 2 factors that determine the amount of work done.