1)Make a sketch of the picture and indicate the path taken by the rubber stopper. You may want to make two pictures of top and side view. Label the length of the string between the top of the cylinder and the rotating stopper, the mass of the rubber stopper and hanging washers, and the velocity and acceleration factors of the stopper. 2) Gravity pulls down word on the stopper and assume that it is approximately parallel to the ground. Draw a new Sideview picture with the stopper moving clearly horizontal. 3)Draw free body diagram of the forces on the stopper in the force is on the hanging washers while the stopper is moving horizontally. Assign symbols to all the forces and define what they represent next year diagrams. It is useful to put the fourth specters on a separate coordinate system for each object. 4)For each force diagram for the stopper and for the washer right down newtons second law in both the ex and Y directions. What is the direction of the acceleration of the stopper? 5)Write down the relationship Between the weight of the heating washers in the force acting on the stopper by the string. What is the force acting on the string? 6)How can you determine the stopper centripetal acceleration from its speed? Can you determine the stopper speed from its period? Combine these relationships with the ones in questions four and five to write an equation for the stoppers. In terms of mass of the hanging washers M The mass of the stopper m and the length of the string from the cable to the stopper L. 7)Use the relationship from question five to write an equation for the force on the string in terms of the stoppers of rotation T. Use this equation to sketch a graph of the force on the string versus the period of rotation.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.50P: The block of weight W is pulled by the force P inclined at the angle to the horizontal. Find the...

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1)Make a sketch of the picture and indicate the path taken by the rubber stopper. You may want to make two pictures of top and side view. Label the length of the string between the top of the cylinder and the rotating stopper, the mass of the rubber stopper and hanging washers, and the velocity and acceleration factors of the stopper. 2) Gravity pulls down word on the stopper and assume that it is approximately parallel to the ground. Draw a new Sideview picture with the stopper moving clearly horizontal. 3)Draw free body diagram of the forces on the stopper in the force is on the hanging washers while the stopper is moving horizontally. Assign symbols to all the forces and define what they represent next year diagrams. It is useful to put the fourth specters on a separate coordinate system for each object. 4)For each force diagram for the stopper and for the washer right down newtons second law in both the ex and Y directions. What is the direction of the acceleration of the stopper? 5)Write down the relationship Between the weight of the heating washers in the force acting on the stopper by the string. What is the force acting on the string? 6)How can you determine the stopper centripetal acceleration from its speed? Can you determine the stopper speed from its period? Combine these relationships with the ones in questions four and five to write an equation for the stoppers. In terms of mass of the hanging washers M The mass of the stopper m and the length of the string from the cable to the stopper L. 7)Use the relationship from question five to write an equation for the force on the string in terms of the stoppers of rotation T. Use this equation to sketch a graph of the force on the string versus the period of rotation.

Star
de consists of seats attached to ropes which are then whirled in a circle. As a member c
petween the force exerted by the rope to keep the riders rotating approximately horizor
E determine how the force required keeping an object rotating at a constant speed chang
ssential study because it will help determine how fast the rotation can be without snappin
EQUIPMENT
e washers and paper clips for a mass set, string, 4 rubber stoppers and a scale.
style pen that is taken apart for the cylindrical handle. Here is a diagram of the setup.
R-
rubber
stoppe
cylindrical
handle
washers
asses through a cylindrical handle. One end of the string is attached to a rubber stopper and the other
ing the vertical handle, you can make the rubber stopper move witha constant speed in a horizontal circ
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Field Chapter 6 Section 6.2 & 6.3.

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