a. 1.61 m/s c. 3.22 m/s d. 10.1 m/s b. 5.07 m/s 49. An engineer is planning a road with a turn. If the speed limit is 20 m/s and the centripetal acceleration cannot exceed 8.5 m/s/s, how big must the radius of the turn be? c. 2.4 m d. 170 m a. 47 m b. 3400 m 50. Why should you reduce speed around a turn if the road is icy? because your car will travel in a straight line unless forced to do otherwise a. b. because a minimum amount of centripetal force is required to keep your car moving around the curve. C. because the ice reduces the frictional force between the tires and the road. d. all of the above

a. 1.61 m/s c. 3.22 m/s d. 10.1 m/s b. 5.07 m/s 49. An engineer is planning a road with a turn. If the speed limit is 20 m/s and the centripetal acceleration cannot exceed 8.5 m/s/s, how big must the radius of the turn be? c. 2.4 m d. 170 m a. 47 m b. 3400 m 50. Why should you reduce speed around a turn if the road is icy? because your car will travel in a straight line unless forced to do otherwise a. b. because a minimum amount of centripetal force is required to keep your car moving around the curve. C. because the ice reduces the frictional force between the tires and the road. d. all of the above

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And The Law Of Gravity

Section: Chapter Questions

Problem 15P: A car initially traveling eastward turns north by traveling in a circular path at uniform speed as...

See similar textbooks

Similar questions

A car initially traveling eastward turns north by traveling in a circular path at uniform speed as shown in Figure P7.15. The length of the arc ABC is 235 m, and the car completes the turn in 36.0 s. (a) Determine the cars speed. (b) What is the magnitude and direction of the acceleration when the car is at point B? Figure P7.15
A car driving around a circular track has a centripetal acceleration of 91 m/s291 m/s2 until it hits a slick spot and slides straight off the track. If the radius of the track is 67 m,67 m, what is the car's speed ?v when it leaves the track?
(I) A jet plane traveling 1890 km/h(525m/s) pulls out of a dive by moving in an arc of radius 5.20 km. What is the plane’s acceleration in g’s?
A race car goes around a level, circular track with a diameter of 1.00 km at a constant speed of 80 km/h. What is the car's centripetal acceleration in =______m/s2?
Problem 19: Part (a) What is the radius, in meters, of the track? r = ______ m Part (b) What was the runner's centripetal acceleration, in meters per squared second, during the run? ac = ______ m/s2
A runner runs around a circular track. He completes one lap at a time of t = 389 s at a constant speed of v = 4.4 m/s.t = 389 sv = 4.4 m/sWhat is the radius, r in meters, of the track? What was the runners centripetal acceleration, ac in m/s2, during the run?
13) jet plane is capable of an acceleration of magnitude 0.564gwhen it turns.If the plane is flying at 988 km/hr, what’s the minimum turning radius for the plane?
A Formula One race car is traveling at 67 m/s along a straight track enters a turn on the race track with radius of curvature of 196 m. What magnitude centripetal acceleration, in m/s2, must the car have to stay on the track? ac =
race car goes around level, circular track with a diameter of 1.00 km at a constant speed of 99 km/h. What is the cars centripedal acceleration in m/s^2?
A peregrine falcon in a tight, circular turn can attain a centripetal acceleration 1.5 times the free-fall acceleration. If the falcon is flying at 20 m/s, what is the radius of the turn?
A car is traveling at a speed of 88 km/hr on a circular racetrack of radius 670 m. What is its centripetal acceleration in m/s2?
An aston martin v8 vantage sports car has a "lateral acceleration" of 9/ms2. This is the maximum centripetal acceleration the car can sustain without skidding out of a curved path. If the car is travelling at a constant 48 m/s on level ground, what is thr radius R of the tightest unbanked curve it can negotiate?