Question 15 Part A The maximum speed of the pendulum bob in a grandfather clock is 0.60 m/s . If the pendulum makes a maximum angle of 5.6 . with the vertical, what is the length of the pendulum? Express your answer using two significant figures. VO AED L = 0.251 m Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remainingQuestion 5 V Part A Airport runways are generally designed with a buffer zone around 300 m long beyond the runway end, to accommodate aircraft that land too fast or too far down the runway and go off the end. What average force must this system exert on a 55-Mg jetliner that enters the arrestor bed at 37 m /s if the jet is to st Where that's not possible, airports are increasingly installing so- Take the direction of the plane to be positive. Express your answer using two significant figures. called Engineered Material Arresting Systems (EMAS) to prevent runaway aircraft from entering nearby roads, neighborhoods, or waterways. One such system, at New York's JFK airport, consists of a 132-m-long bed of crushable cement blocks. AED ? F = 1.41 KN Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Provide FeedbackQuestion 19 Part A A drunk driver in a 1900 kg car plows into a 1500 kg parked car with its brake set. Police measurements show that the two cars If the effective coefficient of friction is 0.70, how fast was the drunk going just before the collision? skid together a distance of 27 m before stopping. IVO AED ? v = 24.5 m/s Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Provide FeedbackQuestion 7 Part A A car moving at 35 km/h negotiates a 130 m -radius banked turn designed for 60 km/h . What coefficient of friction is needed to keep the car on the road? Express your answer using two significant figures. IVO AEQ ? u = 0.22 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining