Hi there I could really use some support on 2-5 regarding circular motion as it would really mean much

Question 2 A 2000 kg car makes a circular turn at 20 m/s on a turn with a radius of 30 meters. a) What force provides the centripetal force b) Find the centripetal acceleration. c) Find the centripetal force on the car. d) What is the coefficient of friction between the tires and the road?Question 3 The earth travels around the sun at 30 ion/sec. E!) Find the distance from the earth to the sun. (It takes 365 days to travel around the sun.) b) Find the centripetal acceleration of the earth. 6) The mass of the earth is 5.98 x 10\" kg. Find the centripetal force acting on the earth? What PTOVideS this force? Question 4 An early objection to the idea that the earth is spinning on its axis is that people at the equator would be thrown off. Show the error in this logic by calculating; a) The speed of a 97 kg person at the equator. (the radius of the earth is about 6380 km.) b) The centripetal force on the person. 0) The Weight of the person. (1) Explain why they would not be thrown o'. Question 5 Friction provides the centripetal force necessary for a car to travel around a at circular race track. a) What is the maximum speed at which a car can safely traVel around a circular track of radius 80 m if the coefcient of friction between the tire and road is 0.30? b) What will happen if the car travels at 10mfs? c) What will happen if the car travels at 25 m/s