Awoman riding a ski lift with a constant velocity of 2.1 m/s up to the top of the hill suddenly hears a loud noise. as she turns to see a fighter jet doing acrobatics involving sharp turns, she accidentally knocks her skis off the lift. in the moment afterwards, which two objects have the same inertial frame of reference?
a. the skier and her skis
b. the skier and the lift
c. the skis and the ground
d. the pilot and the jet

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.