A 13,500 N car traveling at 50 km/h rounds a curve of radius 200 m a. What is the centripetal acceleration of the car? b. What is the force that maintains centripetal acceleration?
c. What is the minimum coefficient of friction between the tires and the road that will allow the car to round the curve
safely (without skidding)?

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.