# A vertical support rod is fixed at the center of a platform

Femeie de serviciu sau servici
The present invention is a tap barre practice and exercise device that has a horizontally fixed barre with at two arms for gripping attached to a substantially straight vertical support, which is in turn attached to a base which sits on a flat surface and allows the device to be free-standing. The height of the barre can be raised or lowered vertically as needed, and the vertical support can ...
1. the end of the rod. We can get that by ﬁnding the net torque on the system. First we should make a quick sketch of the situation:! mg L/2! The weight of the rod mg acts downward from its center of mass. Since the center of mass is a distance L/s from the pivot point, this will create a torque. The angle between the force mg and a line from the
2. 22. A heavy (2.0 kg) point‐like object rests 2.0m from the center of a rough turntable as the turntable rotates. The period of the turntable's rotation is 5.0 seconds. The coefficient of kinetic friction between the object and turntable is 0.50, while the coefficient of static friction is 0.80.
3. upper end leans against a vertical frictionless wall as shown in the figure. What is the magnitude of the force the pin exerts on the beam? a. 0.35 kN b. 0.63 kN c. 0.74 kN d. 0.57 kN e. 0.68 kN 2.____The diagram below shows five 20-kg rods of the same 2.0 m length free to rotate about axes through the rods, as indicated.
4. 2. A bead of mass m can slide without friction along a horizontal rod fixed in place inside a large box. The bead is connected to the walls of the box by two large identical massless springs of spring constant k as sketched in the figure, and the entire box is rotated about a vertical axis through its center with angular speed w.
5. A person of mass 75 kg stands at the center of a rotating merry-go-round platform of radius 3.0 m and moment of inertia 820 kg m^2. The platform rotates without friction with angular velocity 0.95 rad/s. The person walks radially to the edge of the platform. a) Calculate the angular velocity when the person reaches the edge.
6. The fixed scissor platform is provided with a rotating first-stage support rod and a rotating connection between the base and the lifting platform. For the secondary support rod, the side beam, the middle beam and the cross beam are arranged between the primary support rod and the secondary support rod to facilitate the connection of the ...
7. Support Rod m Platform A vertical support rod is fixed at the center of a platform. A light string of length L is attached to the top of the support rod, and the other end of the string is attached to a sphere of mass m, as shown above. The platform rotates with an angular speed that can be varied.
8. Jul 01, 2000 · We have used a discrete conservative model that we considered in the past [1-3] in the study of a vibrating string or rod fixed at both or, at least, at one end point. The main difference in the actual study is that, unlike the previous ones, the matrices which in our linear models "control" the motion turn out to be "unstable".
9. cm = M R2 about the center of mass starts from rest and moves down an incline tilted at an angle from the horizontal. The center of mass of the cylinder has dropped a vertical distance h when it reaches the bottom of the incline. Let g denote the gravitational constant. The