8. Centripetal Forces & Gravitation

Centripetal Forces

Physics Help: Centripetal Force Free Body Diagrams Part 7

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).(c) What would be the time for one revolution if the passenger’s apparent weight at the highest point were zero?

A 52-kg ice skater spins about a vertical axis through her body with her arms horizontally outstretched; she makes 2.0 turns each second. The distance from one hand to the other is 1.50 m. Biometric measurements indicate that each hand typically makes up about 1.25% of body weight. (b) What horizontal force must her wrist exert on her hand?

The Classic Spinning Room Amusement Park Ride | Physics with Professor Matt Anderson | M8-05

Intro to Centripetal Forces

Conical Pendulum

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). (a) Find the speed of the passengers when the Ferris wheel is rotating at this rate.

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). (d) What then would be the passenger’s apparent weight at the lowest point?

Centripetal Force & Acceleration Physics Lesson Part 5 Dynamics

The “Giant Swing” at a county fair consists of a vertical central shaft with a number of horizontal arms attached at its upper end. Each arm supports a seat suspended from a cable 5.00 m long, and the upper end of the cable is fastened to the arm at a point 3.00 m from the central shaft (Fig. E5.50). (a) Find the time of one revolution of the swing if the cable supporting a seat makes an angle of 30.0° with the vertical. <img src="https://lightcat-files.s3.amazonaws.com/problem_images/e78317c3c954d1d0-1673468159968.jpg" alt="" />

Solving the conical pendulum (uniform circular motion for a string that sags below the horizontal).

A small remote-controlled car with mass 1.60 kg moves at a constant speed of υ = 12.0 m/s in a track formed by a vertical circle inside a hollow metal cylinder that has a radius of 5.00 m (Fig. E5.45). What is the magnitude of the normal force exerted on the car by the walls of the cylinder at (a) point A (bottom of the track) <img class="fr-dib" src="https://lightcat-files.s3.amazonaws.com/problem_images/711ba33bef409328-1678205823188.jpg" style="width: 223px;">

In another version of the “Giant Swing” (see Exercise 5.50), the seat is connected to two cables, one of which is horizontal (Fig. E5.51). The seat swings in a horizontal circle at a rate of 28.0 rpm (rev/min). If the seat weighs 255 N and an 825-N person is sitting in it, find the tension in each cable. <img src="https://lightcat-files.s3.amazonaws.com/problem_images/7292403e95b2582e-1673698659332.jpg" alt="" />

A small 4kg block is tied to the end of 3m string and slides around in a circle on a frictionless table. Suppose the string will break if the tension exceeds 50N. Find the maximum speed the block can have without breaking the string.

Uniform Circular Motion and Centripetal Force

A small remote-controlled car with mass 1.60 kg moves at a constant speed of υ = 12.0 m/s in a track formed by a vertical circle inside a hollow metal cylinder that has a radius of 5.00 m (Fig. E5.45). What is the magnitude of the normal force exerted on the car by the walls of the cylinder at (b) point B (top of the track)? <img class="fr-dib" src="https://lightcat-files.s3.amazonaws.com/problem_images/4eab492eb3f6a175-1678205863873.jpg" style="width: 205px;">

Does the Earth Push up on Me Equal to mg? | Physics with Professor Matt Anderson | M8-02

Anderson Video - Weight on Rotating Earth

Finding the tension in the string for a rock whirled around horizontally in uniform circular motion.

Anderson Video - Spinning Room Amusement Park Ride

A small car with mass 0.800 kg travels at constant speed on the inside of a track that is a vertical circle with radius 5.00 m (Fig. E5.45). If the normal force exerted by the track on the car when it is at the top of the track (point B) is 6.00 N, what is the normal force on the car when it is at the bottom of the track (point A)?

Ball Swinging on a String - What are the Forces? | Physics with Professor Matt Anderson | M8-09

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). (b) A passenger weighs 882 N at the weight-guessing booth on the ground. What is his apparent weight at the highest and at the lowest point on the Ferris wheel?

Which Coin Flies Off the Turntable First? | Physics with Professor Matt Anderson | M8-06

Can You Hit a Golf Ball Into Orbit? | Physics with Professor Matt Anderson | M8-10

Centripetal Force

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