I appreciate the help.

6. The blade of a windshield wiper moves through an angle of 86.0 in 0.41 s. The tip of the blade moves the arc of a circle that has akadlus of 0.4 m. What the magnitude of the centripetal acceleration of the tip the blade? : m/s\" 7. A 1.35-kg ball is tied to a 1.26-m long string is being spun in a vertical circle at a constant speed and with a period of 1.55 5. What is the minimum tension in the string? :lN 8. You are riding a roller-coaster going around a vertical loop, on the inside of the loop. If the loop has a radius of 46.0 m, how fast must the cart be moving in order for you to feel 2.75 times as heavy at the bottom of the loop? ' I m/s 9. When a road is dry, a particular car can safely navigate a turn with a 175 m radius of curvature at a maximum speed of 22.0 m/s without slipping. What is the coefcient of static friction between the tires and the road? i . ____J 10. An airplane is traveling at 170 m/s and performs a vertical loop in 23.0 5. Determine the force due to the seat on the 66.0 kg pilot at the top of the loop while upside down. 7 '7" #j N