1. What quantities are perdendicular for an object in uniform circular motion? 2. See picture 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 thesame but the length of the string is doubled?

Answered: Image /qna-images/answer/a55f3512-7da6-4f00-b8a9-c82e5790703e.jpg

Answered: 1. What quantities are perdendicular…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter6: Motion In Two Dimensions

Section6.2: Circular Motion

Problem 12PP

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Similar questions

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 30.0 m. The runner starts the race at a constant speed. If she completes the 200-m dash in 23.2s and rum at constant speed throughout the race, what is her centripetal acceleration as she runs the curved portion of the track?
A geosynchronous satellite orbits Earth at a distance of 42,250.O km and has a period of 1 day. What is the centripetal acceleration of the satellite?
A fairground ride spins its occupants inside a flying saucer-shaped container. If the horizontal circular path the riders follow has an 8.00-m radius, at how many revolutions per minute are the riders subjected to a centripetal acceleration equal to that of gravity?
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Check Your Understanding Assume you are in a spacecraft in orbit about the Sun at Earth’s orbit, but far away from Earth (so that it can be ignored). How could you redirect your tangential velocity to the radial direction such that you could then pass by Mars’s orbit? What would be required to change just the direction of the velocity?
A door in a hospital has a pneumatic closer that pulls the door shut such that the doorknob moves with constant speed over most of its path. In this part of its motion, (a) does the doorknob experience a centripetal acceleration? (b) Does it experience a tangential acceleration?
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A ball on a string goes in a circle with a constant speed of 19.0m/s. If the radius of the circle is 1.4m, what is the magnitude of the centripetal acceleration?
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 car, with mass m, is racing around a circular track with some velocity v. If the car suddenly had its mass tripled and velocity doubled, what would happen to the centripetal acceleration needed for the car to conitnue circular motion?
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