Carnivals often have large rotating cylinders and when these cylinders rotate fast enough the people inside feel pressed up against the wall and do not fall if the floor moves out from under them. While the cylinder is rotating, what forces are acting on a person inside and what is the direction of those forces?

A highway curve has a radius of 0.14 km and is unbanked. A car weighing 12 kN goes around the curve at a speed of 24 m/s without slipping. What is the magnitude of the horizontal force of the road on the car? 17 kN 12 kN O 5.0 kN 13 kN 49 KN p q# 19 p. 242 chap 7

A child is standing on a merry-go-round (u - 16) with a radius of 2 meters. What is the fastest that can he be spun while only using the friction from his feet to stay on? 157 mis 244 m/s 3.14 m/s 177 ms

T3.14 Please help me answer this physics question.

7. A space station of radius 90 m is rotating to simulate a gravitational field. कैम्प 90 m & d a) What is the period of the space station's rotation so that a 70 kg astronaut will experience a normal force by the outer wall equal to 60% of his weight on the surface of the earth? b) What would be the effect experienced by the astronaut if the space station rotated faster so that the period of rotation was decreased? Explain your predicted effect.

A 83-kg pilot in training sits in a centrifuge that spins his seat around a central axis. When the seat is moving in its circular path at a speed of 3.0 m/s, he feels a 585-N force pressing against his back (the seat faces the axis). What is the radius of the centrifuge?

A student places a coin on a flat disk. The flat disk is allowed to rotate around an axis through its center. The angular velocity of the flat disk gradually increases. The coin initially rotates with the disk but eventually slides off the disk. Which of the following is the best explanation for the coin's behavior?   The kinetic friction was no longer large enough to provide the necessary angular acceleration   The kinetic friction was no longer large enough to provide the necessary centripetal acceleration   The static friction was no longer large enough to provide the necessary angular acceleration   The static friction was no longer large enough to provide the necessary centripetal acceleration

Two uniform spheres are positioned as shown. Determine the gravitational force F which the titanium sphere exerts on the copper sphere. The value of R is 55 mm. Copper 1.9 R 3.4 R x i+ i j) (108) N R Titanium Answer: F = (i 27° --

Merry-go-rounds are a common ride in park playgrounds. The ride is a horizontal disk that rotates about a vertical axis at their center. A rider sits at the outer edge of the disk and holds onto a metal bar while someone pushes on the ride to make it rotate. Suppose that a typical time for one rotation is 6.0 ss and the diameter of the ride is 16 ftft . 1. For this typical time, what is the speed of the rider, in m/sm/s? Express your answer in meters per second. 2. What is the rider’s radial acceleration, in m/s2m/s2? Express your answer in meters per second squared. 3.  What is the rider’s radial acceleration if the time for one rotation is halved? Express your answer in meters per second squared.

Please help: A 2.90 kg bucket is attached to a disk-shaped pulley of radius 0.131 m and mass 0.792 kg. If the bucket is allowed to fall, How far does the bucket drop in 1.20 s?