R The figure above is taken from one of the Webassign HW problems which shows a person held up against a wall of a circularly moving ride in which the floor drops away. The radius of the spinning chamber is 2m and the coefficient of static friction between the person and the wall is 0.7. What should be the minimum rotation speed (in RPM) if the person is not to slip? (Round your answer to one decimal place)

R The figure above is taken from one of the Webassign HW problems which shows a person held up against a wall of a circularly moving ride in which the floor drops away. The radius of the spinning chamber is 2m and the coefficient of static friction between the person and the wall is 0.7. What should be the minimum rotation speed (in RPM) if the person is not to slip? (Round your answer to one decimal place)

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 51P: A child with mass 40 kg sits on the edge of a merry-go-round at a distance of 3.0 m from its axis of...

See similar textbooks

Similar questions

Suppose a mass is moving in a circular path on a frictionless table as shown below. In Earth’s frame of reference, there is no centrifugal force pulling the mass away from the center of rotation, yet there is a force stretching the siring attaching the mass to the nail. Using concepts related to centripetal force and Newton’s third law; explain that force stretches the string, identifying its physical origin.
If centripetal force is directed toward the center, why do you feel that you are ‘thrown’ away from the center as a car goes around a curve? Explain.
What is the ideal speed to take a 100.0-m-radius curve banked at a 20.0angle?
If centripetal force is directed toward the center, why do you feel that you are ‘thrown' away from the center as a car goes around a curve? Explain.
A space station, in the form of a wheel 120 m in diameter, rotates to provide an artificial gravity of 3.00 m/s2 for persons who walk around on the inner wall of the outer rim. Find the rate of the wheels rotation in revolutions per minute that will produce this effect.
An office door is given a sharp push and swings open against a pneumatic device that slows the door down and then reverses its motion. At the moment the door is open the widest, (a) does the doorknob have a centripetal acceleration? (b) Does it have a tangential acceleration?
A banked highway is designed for traffic moving at 90.0 km/h. The radius of the curve is 310 m. What is the angle of banking of the highway?
A child with mass 40 kg sits on the edge of a merry-go-round at a distance of 3.0 m from its axis of rotation. The merry-go-round accelerates from rest up to 0.4 rev/s in 10 s. If the coefficient of static friction between the child and the surface of the merry-go-round is 0.6, does the child fall off before 5 s?
The figure above is taken from one of the Webassign HW problems which shows a person held up against a wall of a circularly moving ride in which the floor drops away. The radius of the spinning chamber is 3m and it rotates at 29 RPM. What should be the minimum value for the coefficient of static friction if the person is not to slip? (Round your answer to one decimal place)
For a car traveling at speed Vo, it is possible to bank a curve at just the right angle β so that no friction at all is needed ( even on wet icy surface) for the car to safely round the curve at its turning radius R, see the figure below. Find the angle β
One end of a cord is fixed and a small 0.550-kg object is attached to the other end, where it swings in a section of a vertical circle of radius 1.50 m, as shown in the figure below. When ? = 17.0°, the speed of the object is 6.00 m/s. At this instant, find the total acceleration and degree below the cord.
A 14000N car traveling at 25 m/s rounds a curve of radius 200 m. Find the following 1. The centripetal acceleration of the car? 2. The force that maintains centripetal acceleration? 3. The minimum coefficient of static friction bettween the tires and will allow the car to round the curve safely?