Darlene runs off the end of a diving board with a horizontal velocity of 5 m/s. She hits the water in 4 s. Dave runs off the same diving board with a horizontal velocity of 8 m/s.
Compared to Darlene, Dave will hit the water
(7 Points)
in a short amount of time
in a longer amount of time
in the same amount of time

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.