8. Centripetal Forces & Gravitation

To determine the magnitude of the centripetal acceleration $a\_c$ of a test mass moving in a circle, which of the following measurements are required?

In the context of a satellite moving in a stable circular orbit around a planet, what provides the centripetal force that keeps the satellite in its orbit?

Which force provides the $\mathrm{centripetal}\mathrm{force}$ that allows a car to move around a sharp curve on a roadway?

Which statement best explains how a $F\_c$ (centripetal force) causes circular motion?

Which formula can be used to find the centripetal acceleration of an orbiting object?

Which of the following expressions correctly gives the centripetal acceleration of an object moving in a circle of radius $r$ with speed $v$?

A ball of mass $m$ is attached to a string and swung in a horizontal circle of radius $r$ at a constant speed $v$. What is the magnitude of the centripetal force acting on the ball? (answer in newtons)

A runner moves at a constant speed of $8.0m/s$ around the ends of a track that are semicircular with a radius of $12.5m$. What is her centripetal acceleration during the turn at each end of the track?

In which of the following sports does $centripetalforce$ play a key role in the motion of the participants?

Does the centripetal force acting on an object moving in a circular path do work on the object?

Which of the following is not an example of a centripetal force?

In the context of circular motion, which force is considered to be $\text{center seeking}$?

The Cosmo Clock 21 Ferris wheel in Yokohama, Japan, has a diameter of $100$ m. Its name comes from its $60$ arms, each of which can function as a second hand (so that it makes one revolution every $60.0$ s). Find the speed of the passengers when the Ferris wheel is rotating at this rate.

When a car moves through a curve on a flat road, what force provides the necessary $F\_c$ (centripetal force) to keep the car following the curved path?

Which of the following best describes the concept of $\mathrm{centripetal}\mathrm{force}$ in physics?