A parachutist jumps out of an airplane and accelerates with gravity to a maximum velocity of 58.8 m/s in 6.00 seconds.She then pulls the parachute cord and after a 4.00-second constant deceleration,descends at 10.0 m/s for 80.0 seconds,reaching the ground.From what height did the parachutist jump?
A) 914 m
B) 1110 m
C) 1520 m
D) 1750 m

Question

Quizplus · Accepted Answer

The parachutist first accelerates to 58.8 m/s in 6 seconds, covering a distance of 176.4 m. Then, she decelerates to 10 m/s over 4 seconds, covering an additional 137.6 m. Finally, she descends at 10 m/s for 80 seconds, covering 800 m. Adding these distances gives a total height of 1110 m.

A Parachutist Jumps Out of an Airplane and Accelerates with Gravity