Q1-MTE

1. A parachute with a doll attached has a total mass of 2-kg. The parachute, which has a drag coefficient of -0.5 kg/m, is dropped off a cliff that is 24-m high. a. The parachute is designed to open after freefalling for 1 second. i. how far has it fallen when the parachute opens? ii. How fast it is moving when the parachute opens? b. Once the parachute is open, the acceleration changes to an average of 2.5 m/s2 until reaching terminal velocity. i. What is the drag force once at terminal velocity? ii. Recalling that the relationship between drag force and terminal velocity is Fdrag = -cv2, find the terminal velocity of the parachute. iii. How far does the parachute fall while decelerating? c. Once the parachute reaches terminal velocity, how much more time does it take to reach the ground?