A small ball is attached to the lower end of a 0.800-m-long string, and the other end of the string is tied to a horizontal rod. The string makes a constant angle of 52.5 degrees with the vertical as the ball moves at a constant speed in a horizontal circle. If it takes the ball 1.40 s to complete one revolution, what is the magnitude of the radial acceleration of the ball?

We know that the moon Callisto revolves around Jupiter during a period of 17.0 days.17.0 days. The average distance from the center of Jupiter to the center of Callisto is 1.95×109 m.1.95×109 m. What is the acceleration ?a of Callisto due to its motion around Jupiter?

A light, rigid rod is 50.2 cm long. Its top end is pivoted on a frictionless horizontal axle. The rod hangs straight down at rest with a small, massive ball attached to its bottom end. You strike the ball, suddenly giving it a horizontal velocity so that it swings around in a full circle. What minimum speed at the bottom is required to make the ball go over the top of the circle? m/s

A well-thrown football is spinning at 5.9 rev/s. The widest point of the football is at the center of the laces, where the radius is 8.50 cm.  What is the magnitude of the centripetal acceleration of the laces in m/s2?

A drag racer driving around a circular track has a centripetal acceleration of 5 m/s2 and a tangential acceleration of -2 m/s2. What is the magnitude of the total acceleration of the car?

A fairground ride spins its occupants inside a flying saucer-shaped container. If the horizontal circular path the riders follow has a 4.33 m radius, if the riders is subjected to a centripetal acceleration 3.9 times that due to gravity, what is the spinning speed in unit of revolutions per minute? Use g = 9.8 m/s2.

A runner taking part in the 200 m dash must run around the end of a track that has a circular arc with a radius of curvature of 35 m. The runner starts the race at a constant speed. If she completes the 200 m dash in 22.6 s and runs at constant speed throughout the race, what is the magnitude of her centripetal acceleration (in m/s2) as she runs the curved portion of the track?

A Ferris wheel with a radius of 24.0 m is turning about a horizontal axis through its center as shown in the figure. The speed of a passenger on the rim is constant and equal to 6.00 m/. What is the magnitude and direction of the passenger's acceleration as she passes through the (a) lowest point in her circular motion and by the highest point in her circular motion? (c) How much time does it take the Ferris wheel to make one revolution? (d) Include a diagram of the passenger on the Ferris wheel at both locations and clearly indicate both the velocity and acceleration vectors of the passenger in the diagram

An airplane is flying north. It makes a gradual 180° turn (at any instant, the turning angle is less than 90°) at constant speed of 415.5 km/h, changing its direction of travel from north through east to south in 36.5 s. The centripetal acceleration of the plane for this turn in m/s2 is: Answer: The force of gravitational attraction hetween tuuo nhinntamith

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