13. a jet taking off from an aircraft carrier goes from 0 to 250 mi/h in 30
a) what is the jet's acceleration?
b) if after take-off, the jet continues to accelerate at the same rate for
15 s, how fast will it be going at that time?
c) how much time does it take for the jet to reach 500 mi/h?
d) how much distance would it take for that same jet to reach 500 mi/hr

Abasketball star covers 2.65 m horizontally in a jump to dunk the ball. his motion through space can be modeled precisely as that of a particle at his center of mass. his center of mass is at elevation 1.02 m when he leaves the floor. it reaches a maximum height of 1.90 m above the floor and is at elevation 0.910 m when he touches down again. (a) determine his time of flight (his "hang time"). (b) determine his horizontal velocity at the instant of takeoff. (c) determine his vertical velocity at the instant of takeoff. (d) determine his takeoff angle. (e) for comparison, determine the hang time of a whitetail deer making a jump with center-of-mass elevations yi = 1.20 m, ymax = 2.45 m, and yf = 0.750 m.