Question

c. It has tangential (linear) acceleration that points in the same direction as the velocity, and a decreasing centripetal acceleration d. It has tangential (linear) acceleration that point opposite the velosity, and a constant centripetal acceleration QUESTION 3 A 53.5 kg parachutist jumps from an airplane and falls to Earth with a drag force proportional to the square of the speed, R-CV. Take C -0.220 kg/m (with the parachute closed) and C - 22.0 kg/m (with the chute open). What is the terminal velocity with the parachute closed (2 points) and open (2 points). Before the parachute is open is the acceleration of the person constant? Explain why or why not. (1 point) Attach File Browse My Computer Browse Content Collection QUESTION 4 If the network done on an object is zero, which of the following are true? a. It's speed is unchanged b. It's speed has decreased. It's velocity is unchanged di velocity has decreased It's velocity 5 zero Type here to search DELL

Answer 1

Here we given marts of parachutist m= 53.5 kg drag force: R = Cr2 C = 0.220kg/m (parachut is closed? C = 22.0 log/m (parachutis opens terminal velocity v=? We have asked about terminal relocity it's maximum relocity attained by an object passing or falling through a fluid. It is attained when drag forex and buoyancy force balance weight of the body so that not force is Zero on the body Case I hohari parachul is closed .. we have Carta ng 0.220 x ?2.53-5x9,81 .NE 524.1oby 0.220 VE 2385.61 . v = 48i8nnifel this is fore belocity when parachut is closed..

Case I then parachut is open. then we a a increased ding force that he'll reduce terminal relocity .icpoz o co?= mg ring 22:0 XU = 535X9.81 va 531, 843 = 23.86 [v2 1.88 mje), We saw on opening parachut velocity decrease & significantly