A ball attached to an end of a 60-cm long string is revolving uniformly in a circle. How will the centripetal acceleration change if the ball's speed remains the same but the length of the string is doubled? a. The centripetal acceleration will be halved. b. The centripetal acceleration will be doubled. c. The centripetal acceleration will be quadrupled. d. The centripetal acceleration will remain the same.

Beth is writing a merry-go-round at the Hamilton County fair. Beth's horse is located 6.5 m from the center of the merry-go-around. octavia has a stopwatch, and she discovered that the merry-go-round has a period of 43 seconds. 1. Calculate the speed of Elizabeth's horse to the circular path. 2. calculate the centripedal acceleration of Beth and her horse. 3. if Beth has a mass of 51 kg calculate the centripetal force necessary to keep her and this circular path.

1. In each of the four situations below an object is experiencing (nearly) uniform circular motion. State what force is providing the centripetal force required to keep the object moving in a circle:  a. A car driving around a track b. A ball being swung on the end of a string c. The moon orbiting the earth d. A rotating wheel 2. Consider the ball being swung around in a circle

A disk-shaped space station has been built by Professor Trout. It is in outer space at this moment. It is 175 m in diameter and spins uniformly about an axis perpendicular to the plane of the disk through its center. How many revolutions per minute must this disk make so that the centripetal acceleration experienced by tenants in the space station is exactly g/2? a) 2.26 rev/min b) 0.87 rev/min c) 7.12 rev/min d) 3.94 rev/min e) 1.40 rev/min

QUESTION 17 A 0.1 kg ball rotates at a constant speed of 2 m/s on the end of 1 m long string. The string describes a horizontal circle. What is the centripetal force_ ? and centripetal acceleration of the object_ O O O O O 7.5 N; 1.2 m/s² 3.9 N; 3 m/s² 0.4 N; 4 m/s² 6 N; 3.2 m/s² 2.5 N; 2.4 m/s2

E2. A car rounds a curve with a radius of 35 m at a speed of 20 m/s. What is the centripetal acceleration of the car?

4. A 5 Kg cat sits 2 m from the center of a merry go round. The merry go round is set in motion, and the cat's tangential speed is 3 m/s.     (a) What is the cat centripetal acceleration?     (b) What is the centripetal force acting on the cat?

A Ferris wheel with a 12 m radius makes 10 complete clockwise revolutions in seven minutes about its horizontal axis. What is the magnitude of a passengers centripetal acceleration at the highest point during the ride?

14. An object is swung around on a string in a vertical circle, while its speed is slowly increased. At some point, the string breaks. Where in the object's path would this most likely happen? Explain.

An intergalactic spaceship arrives at a distant planet that rotates on its axis with a period of T = 31 hours. The mass of the planet is M = 2.1 • 1025 kg. The spaceship enters a circular orbit with an orbital period that is equal to the planet's period for the rotation about its axis, T.   a.  Enter an expression for the radius of the spaceship’s orbit.  b.  Calculate the orbital radius in meters.